Ron DeSantis completed his campaign promise to visit each of Iowa’s 99 counties.

Ron DeSantis has completed his campaign promise to visit each of Iowa’s 99 counties

GOP hopefuls are descending on the state, with former President Donald Trump and Florida Gov. Ron DeSantis holding dueling rallies.

The former president's attorney argues that Trump's actions were protected speech.

The decision tees up a legal fight that could reach the U.S. Supreme Court.

Former President Trump's lawyer argued Friday that the Georgia election interference indictment against Trump "needs to be dismissed" due to First Amendment protections.

The judge overseeing former President Donald Trump's federal election interference case has rejected Trump's motion to dismiss the case based on presidential immunity.

The court reached the decision despite former President Donald Trump claiming he is immune from liability.

ABC News’ Olivia Rubin talks about former President Donald Trump’s attorneys filing for a delay or dismissal of his Georgia election interference case.

ABC news investigative reporter Olivia Rubin and former Georgia prosecutor Chris Timmons discuss what’s at stake for former President Donald Trump in his Georgia election interference case.

Trump's attorneys are arguing to have the election interference case against the former president delayed or dismissed altogether.

An appeals court has ruled that former President Trump can be sued for allegedly inciting the Jan. 6 attack on the Capitol, rejecting his claims of absolute immunity.

With less than 50 days until the Iowa caucuses, Trump's campaign is making a major weekly six-figure advertisement buy

Here's a look at how special counsel Jack Smith's investigation into former President Donald Trump's handling of classified documents has progressed.

Donald Trump will be headlining a closed-door fundraiser in Florida next week as his Republican primary rivals return to the debate stage on Dec. 6

Trump lawyer Jennifer Little told investigators Trump was warned that if he did not comply with a federal subpoena, "it's going to be a crime," sources familiar with the case told ABC News.

A lawyer for Donald Trump told investigators she warned Trump that not complying with a subpoena to return all classified documents is "going to be a crime," sources say.

The attorney, Jennifer Little, told investigators she had warned Trump that failing to comply with the subpoena for the return of classified materials at Mar-a-Lago would be a crime, said sources.

The landmark trial is set to begin on March 4.

Here's a look at how Fulton County District Attorney Fani Willis' investigation into efforts to overturn the 2020 election results in Georgia has unfolded.

Charles Koch's Americans for Prosperity Action endorsed Nikki Haley as the Republican alternative to Trump ahead of the Iowa caucus

ABC News’ Katherine Faulders talks about what former Vice President Mike Pence told investigators about former President Donald Trump’s role in trying to overturn the 2020 election results.

ABC News senior reporter Katherine Faulders has new details about what former Vice President Pence told investigators about his interactions with former President Trump leading up to Jan. 6.

Mike Pence told the special counsel probing Jan. 6 that then-President Trump was advised by "crank" lawyers and almost created a "constitutional crisis," sources say.

Republican megadonor Bernie Marcus told ABC News that while he's not necessarily "happy" that Donald Trump is the leading GOP candidate, he's supporting him nonetheless.

Mike Pence told special counsel Jack Smith's team that Donald Trump had almost pushed the country into a “constitutional crisis," according to sources familiar with what Pence told investigators.

Experts in constitutional law and the military say the Insurrection Act gives presidents tremendous power with few restraints

Trump attorney Alina Habba, who worked in private law practice before starting her own practice in 2020, has become one of Donald Trump's strongest advocates.

Trump recently got a surprise endorsement from Bernie Marcus and is gradually getting more support from other former donors

The Powerhouse Roundtable breaks down the latest news on “This Week.”

Former President Donald Trump attended a football game on former South Carolina Gov. Nikki Haley's home turf Saturday night and other trail takeaways

Republican presidential candidates are focusing on their Iowa ground game with weeks to go until Jan. 15 caucus

Prosecutors want to revoke bond for Harrison Floyd, a co-defendant of former President Donald Trump in the charges stemming from the 2020 election.

Mike Johnson met with Trump at his Mar-a-Lago resort in Florida Monday night

Fulton County prosecutors in former President Trump's Georgia election interference case are seeking to revoke the bond of co-defendant Harrison Floyd.

Trump and CREW both appealed a Colorado judge's ruling that Trump engaged in insurrection on Jan. 6 but that the 14th Amendment doesn't disqualify him as a candidate

A federal appeals court appears inclined to reimpose at least some restrictions on Donald Trump’s speech in his election subversion case

ABC News' Katherine Faulders and contributor Jeff Robbins discuss the hearing that could lift the gag order prohibiting Donald Trump from making statements “publicly targeting” Jack Smith.

An appeals court heard arguments from both sides Monday over a limited gag order in Donald Trump's federal election interference case, but did not issue a ruling.

The appeals court listens to arguments about lifting the gag order on former President Donald Trump in his election interference case.

Three GOP candidates attended forum in Iowa ahead of the January caucus that offers a big opportunity to prove Trump is not the only candidate Republicans will embrace

Biden and Trump separately spent Sunday with soldiers and their families to mark Thanksgiving

Former President Donald Trump celebrated a win in a closely watched election case during a return visit to Iowa

A judge has ruled that former President Donald Trump will be allowed to remain on the Republican primary ballot.

Donald Trump's eldest son and several expert witnesses took the stand during the first week of defense testimony in the civil fraud trial of Donald Trump.

ABC News’ Jon Karl talks about his new book “Tired of Winning” and what it reveals about the last days of former President Donald Trump’s time in office.

Democrats are highlighting Trump's record on abortion restrictions with billboards in Iowa ahead of his campaign trip this weekend along with other GOP candidates

Fulton County DA Fani Willis is requesting a start date of Aug. 5 for the trial of former President Trump and his co-defendants in Georgia's election interference case.

Chief Washington correspondent Jonathan Karl spoke with the former President Donald Trump about the Jan. 6 attack on the Capitol just over two months after it happened.

Biden condemned Trump for comparing his political enemies to "vermin," with Biden arguing it "echoes language you heard in Nazi Germany in the 30s"