ABC's Jilian Fama and Meghan Kiesel report:

Politicians have taken to Twitter to respond to the early morning shootings at a "Dark Knight Rises" premiere in Aurora, Colo.

Read more about the Aurora shooting here.

(Tweet 1) We will support each other as a community and bring the shooter to justice. #theatershooting

(Tweet 2) My thoughts & prayers go to everyone involved in the #Aurora #theatershooting.

(Tweet 3) Appreciated @JoeBiden calling me, saying he is keeping all Coloradans in his thoughts after #Aurora #theatershooting. -Colorado Sen. Mark Udall ?@MarkUdall

(Tweet 1) My family and I are shocked and saddened this morning. Our hearts are with the victims and their families. Statement: http://bit.ly/NDiG3g

(Tweet 2) Bonfils Blood Center needs donations, especially O-, A- and platelets. Appointments required @ http://t.co/kc3I0vlK #theatershooting - Colorado Sen. Michael Bennet @SenBennetCO

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Our thoughts + prayers are w/ Coloradans as they grapple with the random, senseless act of violence that took the lives of innocent people. -House Minority Leader Nancy Pelosi @NancyPelosi

My thoughts and prayers are with the victims and family members of the #theatershooting in Aurora, Colorado -Speaker of the House John Boehner @johnboehner

My prayers go out to the victims and families affected by last night's horrific shooting and senseless violence in Colorado. -Newark NJ Mayor Cory Booker @CoryBooker

Our thoughts and prayers are with the victims of the senseless tragedy in #Aurora, Colorado, and their families -Arizona Sen. John McCain @SenJohnMcCain

Callista and I send our thoughts and prayers to the shooting victims & their families in Aurora, Colorado. -Former GOP presidential candidate Newt Gingrich @newtgingrich

Our family's thoughts & prayers go out to victims of this senseless tragedy in CO. At moments like this we must come together as Americans. -Former GOP presidential candidate Rick Santorum @RickSantorum

A senseless and terrible tragedy. Thoughts & prayers are with everyone in Aurora. -New Hampshire Sen. Kelly Ayotte @KellyAyotte

What terrible news from CO this a.m. Praying that God provides comfort to the victims & families and healing to the survivors -Florida Sen. Marco Rubio @marcorubio

The families & friends of those whose lives were cut short in CO are in our prayers this morn, as are those injured & a community grieving -Ohio Sen. Rob Portman @robportman

Anita and I send our prayers to victims & families of last night's senseless tragedy & commend the swift action by Aurora's 1st responders -Texas Gov. Rick Perry @GovernorPerry

What a horrible situation in Colorado. Thoughts and prayers to the victims and their families. #theatershooting -Former presidential candidate Herman Cain @THEHermanCain

My thoughts and prayers are with the families in Colorado - deeply saddened by this unspeakable tragedy. -Massachusetts Sen. Scott Brown @ScottBrownMA

Elaine and I extend our deepest condolences and heartfelt prayers to all those affected by this senseless act of violence in CO. #utpol -? Utah Sen. Orrin Hatch @OrrinHatch

My thoughts & prayers are with the families & loved ones of the victims of last night's tragic shooting in Colorado. -NY Sen. Kirsten Gillibrand @SenGillibrand

My thoughts and prayers are with the victims and the families of the overnight shooting in Aurora, Colo. -Pennsylvania Sen. Pat Toomey @SenToomey

Reports of the shooting deaths in Aurora CO are such a sad tragedy. Wendy & I are praying for all those affected. -Louisiana Sen. David Vitter @DavidVitter

To 250 Va.Scouts,on #Aurora:"When horrible things happen,always remember no country on earth has more kind,decent & compassionate people" -Virginia Sen. Mark Warner @MarkWarner

My thoughts and prayers are with the victims of the unbelievable tragedy last night in Aurora, Colorado. -Indiana Sen. Dan Coats @SenDanCoats

The victims, their families & the community of Aurora in our thoughts & prayers after the tragic shooting in Colorado -Arkansas Sen. John Boozman

Such tragic news from Colorado today. Let's keep the victims and their families in our thoughts and prayers. -Delaware Sen. Chris Coons @ChrisCoons

My heart goes out to everyone in Aurora and the Denver area. Truly horrible. Prayers are with you. -South Carolina Rep. Tim Scott @RepTimScott

My condolences and prayers go out to the victims and families in Colorado #theatershooting -Kentucky Sen. Rand Paul @SenRandPaul

Incredibly saddened by the news of the #CO #theatershooting. My thoughts and prayers are with the victims and their families. #OH16 -Ohio Rep. Jim Renacci @repjimrenacci

Please join me in praying for #Aurora Colorado -Arizona Rep. David Schweikert @RepDavid

My thoughts & prayers are with the 14 dead; 50 injured & their families in the senseless & tragic Aurora, Colorado shootings this a.m. -Michigan Rep. Hansen Clarke @RepHansenClarke

So very saddened by the terrible violence in Aurora. I'm heartbroken for the victims and their families and friends. And for all of us. -Connecticut Rep. Jim Himes @jahimes

My thoughts & prayers go out to the families who lost loved ones in Colorado last night -Texas Rep. Louis Gohmert @replouiegohmert

As a mom, I keep thinking, "My kids go to the movies all the time." Heartbreaking, gut-wrenching, senseless tragedy in #Aurora, CO. -Florida Rep. Debbie Wasserman Schultz @DWStweets

Deeply saddened to hear the tragic news out of Aurora. My heart goes out to victims, the injured & all of their families. -New Jersey Sen. Robert Menendez @SenatorMenendez

My thoughts and prayers are with all those affected by last night's shooting in Colorado. - Alabama Rep. Robert Aderholt @Robert_Aderholt

Praying for victims and families of those killed and injured in Colorado. -Wisconsin Gov. Scott Walker @GovWalker

I am shocked and saddened by the news of the #TheaterShooting - my prayers are w/ the families involved & the Colorado community. -California Rep. Kevin McCarthy @GOPWhip

May peace be with the families and friends of the innocent victims of the tragic shooting in Colorado. America joins you in mourning. -NY Rep. Charles Rangel @cbrangel

My thoughts and prayers are with the victims of the tragic and senseless #TheaterShooting in #Colorado. #CO #ar2 -Arkansas Rep. Tim Griffin @RepTimGriffin

My thoughts and prayers are with the people of Colorado, the victims of senseless violence in Aurora and their families. -Ohio Rep. Marcia L. Fudge @marciafudge

Jane and I grieve with the people of CO. Our thoughts and prayers are with the victims and their families. -Wisconsin Sen. Ron Johnson @SenRonJohnson

May God's healing grace help to guide and comfort the people of Aurora, Colorado through this unspeakable tragedy. #theatershooting -North Carolina Rep. Renee Elmmers @RepReneeEllmers

My thoughts and prayers are with all the victims, their families and the entire Colorado community. -House Majority Leader and Virginia Rep. Eric Cantor @GOPLeader

My heart goes out to the victims, their families and all Coloradans today following the awful tragedy in Aurora. -Oregon Rep. Kurt Schraeder @RepSchraeder

I'm deeply saddened by news of the senseless violence in #Aurora. My thoughts and prayers are with the victims and their families. -Indiana Rep. Joe Donnelly @RepDonnelly

I am sickened and saddened by the tragic and senseless shooting that occurred in CO. My prayers are with the families and their loved ones. -Michigan Rep. John Dingell @john_dingell

Shocked by #Aurora shooting. Thoughts & prayers go out to families. Many thanks to first responders who aided those at scene -Connecticut Rep. Rosa DeLauro @rosadelauro

My thoughts and prayers are with those in Aurora, Colo. today. This is truly heartbreaking and I pray for the victims and their families. -Ohio Rep. Steve Chabot @RepSteveChabot

Our thoughts and prayers go out to all those of the senseless CO tragedy #theatreshooting -New York Rep. Paul Tonko @paultonko

My thoughts & prayers are with the victims, their families, and the whole #Aurora community. -Ohio Rep. Bob Latta @boblatta

I was shocked and saddened to hear of the horrible attack in CO. My heart goes out to all those affected by this senseless act of violence. -California Rep. Laura Richardson @RepLRichardson

The Colorado #theatershooting is a heartbreaking, horrifying tragedy. My thoughts and prayers are with the victims and their families. -Kentucky Rep. Geoff Davis @RepGeoffDavis

Tragic senseless shooting in Colorado last night. The suspect must be brought to justice. My prayers go out to the victims & their families. -Missouri Rep. Vicky Hartzler @RepHartzler

I'm shocked & saddened by the senseless tragedy that occurred in Aurora CO. My thoughts and prayers are with the victims and their families. -Michigan Rep. Gary Peters @RepGaryPeters

Praying for all those affected by the senseless #theatershooting in Colorado. -NC Rep. Howard Coble @HowardCoble

My thoughts and prayers are with the victims of the tragic and senseless #TheaterShooting in #Colorado. #CO #ar2 -Arkansas Rep. Tim Griffin @RepTimGriffin

Please keep those who lost their lives or were injured in the Colorado shooting in your prayers. -Missouri Rep. JoAnn Emerson @JoAnnEmerson

Stunned and heartbroken at the awful violence in Colorado last night. My heart goes out to the victims, their families, and their communities -Connecticut Rep. Chris Murphy @ChrisMurphyCT

Saddened by the violence in Colorado. My thoughts and prayers go out to all the victims and their famillies [sic] of this senseless tragedy. -Virginia Rep. Randy Forbes @Randy_Forbes

Praying for victims of #CO shooting and saddened by this senseless violence. -New Mexico Rep. Steve Pearce @RepStevePearce

Praying for the health and safety of #Aurora CO theater-goers. #theatershooting -Pennsylvania Rep. Tim Murphy

My prayers are with the victims of last night's tragedy in Aurora and my heart goes out to their loved ones. -Florida Rep. Daniel Webster @RepWebster

My thoughts and prayers go out to the victims and families of this senseless shooting in Colorado. -California Rep. Linda Sanchez @RepLindaSanchez

Please keep those killed or injured in the shooting in Aurora, Colorado, as well as their families in your thoughts and prayers. -Texas Rep. Ken Marchant @KenMarchant

My thoughts and prayers are w/ the victims & their families of this tragedy in Aurora, CO. We stand ready to support you in any way we can. -Georgia Rep. John Barrow @repjohnbarrow

Praying for the victims and their families after the senseless tragedy in Aurora, Colorado. South Dakota Rep. Kristi Noem @RepKristiNoem

May God's healing grace help to guide and comfort the people of Aurora, Colorado through this unspeakable tragedy. #theatershooting- North Carolina Rep. Renee Ellmers @RepReneeEllmers

My heart goes out to the victims and loved ones affected by this senseless violence in Aurora, CO. -Alabama Rep. Terri Sewell RepTerriSewell

My thoughts and prayers are with the families and victims of this sad and tragic event in Aurora, Colorado. -Nevada Sen. Dean Heller@SenDeanHeller

My thoughts and prayers are with the victims and families of this senseless violence in Aurora.- California Rep. Karen Bass @RepKarenBass

My heart goes out to those who are suffering after the horrible tragedy in Colorado. California Rep. Lynn Woolsey @RepLynnWoolsey

We remember the lost & pray for recovery of those saved by cops & EMS. Tragedy often reveals heroes. Hopefully, we can exemplify those revealed. Missouri Rep. Russ Carnahan @RepCarnahan

More needs to be done to strengthen current legislation and increase public safety. #Aurora #Colorado New York Rep. Yvette Clarke @YvetteClarke

Today's senseless shooting in Aurora, CO is shocking and heartbreaking. All victims and their families are in my thoughts and prayers. New York Rep. Nita Lowel @NitaLowey

Thoughts and prayers w/victims of horrific Colorado shooting and their families. Rhode Island Rep. James Langevin@jimlangevin

My thoughts and prayers are with the folks in Colorado. #Aurora- Mississippi Rep. Bennie Thompson @HomelandDems

Saddened this morning to hear of the unthinkable tragedy in Colorado. Deepest condolences, thoughts and prayers to victims and families- Virginia Rep. Robert Wittman @RobWittman

My thoughts and prayers are with the families affected by the tragic shooting in Colorado. # NY 09- New Yorks Rep. Bob Turner @USRepBobTurner

My condolences to all the victims&their families affected by the tragic shooting in Colorado. The Aurora community is my thoughts&prayers. - Minnesota Rep. Betty McCollum @Betty McCollum04

Sending thoughts and prayers to Aurora, CO today.- California Rep. Darrell Issa @DarrellIssa

Gayle & I are saddened by the senseless tragedy that occurred overnight in Colorado. Our prayers are with the victims & their families. -Mississippi Sen. Roger Wicker @RogerWicker

Aurora another senseless gun tragedy. Thoughts and prayers with victims and their families- Virgina Rep. Gerry Connolly @GerryConnolly

My prayers are with the families of the victims who lost their lives in this tragic attack in Colorado.- Florida Rep. Allen West @AllenWest

Thoughts & prayers are with Aurora victims & the loved ones now dealing w/ this senseless tragedy. Just heartbreaking- Illinois Rep. Mike Wuigley @RepMikeQuigley

My thoughts are with the victims of today's shooting and their families, as well as the entire community of Aurora, Colorado. -Kentuckey Rep. John Yarmuth @RepJohnYarmuth

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