Georgia gubernatorial candidate Stacy Abrams makes a campaign speech to supporters at the Mack Gaston Community Center in Dalton on Friday, Oct, 20, 2018.

Stacey Abrams, the Georgia politician who captured national attention during her unsuccessful run for governor in 2018, has decided not to run for president after publicly contemplating a bid for months, according to people familiar with her thinking.

Abrams, a Democrat, will instead put her efforts into preventing voter suppression, including working with state parties in battleground states to more closely monitor voter protection ahead of next year's general election.

The move comes after civil rights groups raised questions about voter suppression and election rigging in Abrams' 2018 race against Brian Kemp, a Republican who was Georgia's secretary of state.

Abrams is set to speak Tuesday afternoon at the International Union of Painters and Allied Trades Convention in Las Vegas. She is likely to remain atop any Democratic nominee's vice-presidential wish list.

"In typical Stacey Abrams fashion, she's taking a hard look on the best use of her time and talents are," said Lauren Groh-Wargo, a close aide to Abrams and her former campaign manager in 2018. "And while being a pundit or running for president might have been easier, fighting voter suppression and making sure our nominees have what they need to fight on the ground is what's most important."

Abrams made her decision in recent days, aides said, as she determined she was comfortable with current crop of Democratic candidates.

The decision by Abrams, a former Democratic leader in the Georgia House of Representatives, ends months of speculation, some of which was fueled by Abrams herself. Repeatedly, she has said she believes she is qualified to be in the presidential field, and she has held several private sit-down meetings with other candidates, encouraging them to focus on voter suppression and fair elections as they crisscross the country for votes.

Earlier this year, Abrams delivered the Democratic response to President Donald Trump's State of the Union, earning rave reviews from party leaders. In it, she blended lofty rhetoric with pragmatic policy proposals, a combination that some of her supporters argue is ideal for a Democratic candidate hoping to defeat Trump.

Others have touted her good standing with black voters across the ideological spectrum, which could increase turnout among a critical constituency that was less than enthused about the 2016 Democratic ticket.

Previously, Abrams turned down a pitch from Sen. Chuck Schumer, the minority leader, to run for Senate in Georgia.

"Our most urgent work is to realize Americans' dreams of today and tomorrow," Abrams said during her State of the Union response. "To carve a path to independence and prosperity that can last a lifetime."

Abrams was sure to face several challenges had she entered the already sprawling Democratic presidential field, where several candidates with higher national name recognition have already struggled to break through. She would have had to quickly build out a national fundraising operation, and face off against several allies who acted as surrogates and fundraisers for Abrams during her gubernatorial campaign.

It has become commonplace for Democratic presidential candidates to mention Abrams on the campaign trail, saying that they believe she would have defeated Kemp had the election been free of suppression allegations.

"Massive voter suppression prevented Stacey Abrams from becoming the rightful governor of Georgia," Sen. Elizabeth Warren, D-Mass., said in an April speech.

In November, shortly after the election, Sen. Cory Booker, D-N.J., said, "I think that Stacey Abrams' election is being stolen from her, using what I think are insidious measures to disenfranchise certain groups of people."

Since her narrow loss to Kemp, Abrams has thrust her star power behind Fair Fight Action, the advocacy group she began to "expand democracy and ensure all voters have access to the polls."

The group's latest initiative will expand beyond Georgia to target 20 states, including across the Midwest and Southeast, and will invest up to $5 million.

It will work to correct inaccurate voter rolls, address shortages of voting machines and provisional ballots, and standardize the rules around counting absentee ballots, according to aides. There will also be a state-by-state hotline that local communities can call to report election irregularities.

Fair Fight Action has previously sued the Georgia secretary of state's office, asking federal courts to address voting procedures that the group claims are unconstitutional and discriminatory.