Sen. Kirsten Gillibrand, D-N.Y., a former corporate lawyer, made her run official, announcing that "I am running for president" in a video posted to her verified YouTube account in March.
She had announced a presidential exploratory committee on 'The Late Show' with Stephen Colbert on Jan. 15.
Demonstrating her will to take on the president, Gillibrand ended her video with an announcement that her first major speech as a presidential candidate will take place outside of the Trump International Hotel in New York City on March 24.
The senator had previously publicized her campaign on the theme of fighting for children across the country and restoration of the current state of the union.
"I am going to run for president of the United States because as a young mom, I am going to fight for kids as hard as I would fight for my own," Gillibrand said. "It is why I believe healthcare should be a right not a privilege. It is why I believe we should have better public schools for our kids, because it shouldn't matter what block you grow up on. And I believe that anybody who wants to work hard enough should be able to get whatever job training they need to earn their way to the middle class, but you are never going to accomplish any of these things if you don't take on the systems of power that make any of that possible."
Gillibrand said that she plans to take on "institutional racism," "corruption and greed in Washington" and "special interests that write legislation in the dead of the night."
"I know that I have the compassion, courage and fearless determination to get that done," she said.
Gillibrand was the second female to enter the 2020 race behind Sen. Elizabeth Warren, D-Mass., who launched her campaign at the end of 2018.
Since her announcement, the senator from New York has been on the campaign trail in Iowa, New Hampshire and South Carolina.
In February, she even found herself in one of the 2020 cycle's first viral moments when a woman at an Iowa restaurant squeezed past where Gillibrand was speaking in an attempt to find ranch dressing. Video of the "ranch girl" moment quickly topped 1 million views on Twitter.
Here's everything you need to know:
Date of birth: Dec. 9, 1966
Birthplace: Albany, Albany County, N.Y.
Family: Husband Jonathan Gillibrand and two sons
Education: J.D., UCLA School of Law (1991); A.B., Dartmouth College (1988, magna cum laude)
What she does now: U.S. senator for New York, 111th-116th (2009-Present)
What she used to do: U.S. representative of New York’s 20th congressional district, 110th-111th (2007-2009); special counsel to Secretary of Housing and Urban Development (HUD) Andrew Cuomo during the Clinton administration; attorney in New York City; law clerk to Judge Roger Miner on the Second Circuit Court of Appeals
Key life and career moments:
Gillibrand became a senator in 2009 to fill the vacancy caused by the resignation of Hillary Clinton when then-Sen. Clinton was nominated for secretary of state.
According to Gillibrand’s official website, she held the first Senate hearing on sexual assault in the military in almost a decade in 2013, as chair of the armed services subcommittee on personnel. She also introduced the Military Justice Improvement Act, which "would remove sexual assault cases from the chain of command."
The website also highlights her lead of a bipartisan coalition for the Campus Accountability and Safety Act, which would "hold colleges accountable for sexual assault on their campuses."
"I'm going to run for president of the United States because, as a young mom, I'm going to fight for other people's kids as hard as I would fight for my own," she told Stephen Colbert in January 2019 to announce her run for the seat in the Oval Office on an appearance on "The Late Show."
What you might not know about her:
Gillibrand has more than $10 million in reserve after her re-election campaign, according to OpenSecrets, which could help her kickstart a presidential run in 2020.
She used to have an "A" rating from the NRA but says she now "proudly" has an 'F' rating. "I had only really looked at guns through the lens of hunting. My mom still shoots the Thanksgiving turkey, but when I became a senator I recognized I had a lot to learn about my state and all the 20 million people I was going to represent," Gillibrand said in Iowa in January 2019.
According to FiveThirtyEight, Gillibrand was "among the least liberal members of the Democratic caucus" when she served in the House of Representatives, ranking 209th out of 241. However, in the Senate, she leaned more to the left and was the "seventh most liberal member of the 46-person Democratic caucus" in the last Congress.
She has voted against President Donald Trump’s positions "more often than any other senator" as of December 2017, according to FiveThirtyEight.
Gillibrand was the first senator to call on former Sen. Al Franken, D-Minn., to resign after he faced multiple allegations of sexual misconduct.
In an interview with Self Magazine in 2012, she shared that she then had a standing weekly squash date with Franken.
Gillibrand published a children's book titled "Bold & Brave: Ten Heroes Who Won Women the Right to Vote" in 2018.
According to Gillibrand’s official website, she was "the first member of Congress ever to post her official daily meetings, earmarks, and personal financial disclosures online."
She graduated in 1984 from the Emma Willard School in Troy, New York -- the first all-women’s high school in the United States.
ABC News' Adam Kelsey and Christopher Donato contributed to this report.