Tim Scott, the first Black Republican elected to the Senate from the South since Reconstruction, announced his campaign for president on Monday, adding to a growing number of Republicans running as alternatives to former President Donald J. Trump.
Mr. Scott’s decision, which followed a soft rollout in February and the creation of an exploratory committee in April, came this time with a signal to the Republican establishment that he was the candidate to rally around if the party is to stop Mr. Trump’s nomination. He was introduced by the No. 2 Republican in the Senate, John Thune of South Dakota, and will immediately begin a $5.5 million advertising blitz in the early nominating states of Iowa and New Hampshire.
“Our party and our nation are standing at a time for choosing: Victimhood or victory? Grievance or greatness?” he planned to say at a packed and boisterous morning rally in the gym of his alma mater, Charleston Southern University, according to prepared remarks. “I choose freedom and hope and opportunity.”
Long considered a rising star in the G.O.P., Mr. Scott, 57, enters the primary field having amassed $22 million in fund-raising and having attracted veteran political operatives to work on his behalf.
But the field of Republicans hoping to take the nomination from Mr. Trump is about to grow far more crowded. Gov. Ron DeSantis of Florida and Chris Christie, the former governor of New Jersey, are expected to enter the race in the coming days. Chris Sununu, the popular Republican governor of New Hampshire, hinted over the weekend that he was likely to throw his hat in the ring as well, scrambling the battle for the state with the first Republican primary. Mike Pence, Mr. Trump’s former vice president, is still mulling a run.
With Mr. Trump’s most ardent followers unwilling to abandon their standard-bearer, the former president’s critics worry that more opponents will only split the anti-Trump vote and ensure his victory. Mr. Thune’s presence onstage Monday was an acknowledgment of that concern and a call to other elected Republicans to get on board with Mr. Scott.
Aides to the Scott campaign said his $22 million war chest was more than any presidential candidate in history. (When Mr. DeSantis announces his campaign as expected, he will have more money in allied groups.) They also said that the $42 million he has raised since 2022 — much of which has been dolled out to other Republicans — had created a depth of loyalties other candidates do not have.
The biggest question looming over Mr. Scott’s candidacy may be whether his message of positivity steeped in religiosity can attract enough Republican voters to win in a crowded primary.
One of Mr. Scott’s rivals for the nomination is Nikki Haley, a former United Nations ambassador and South Carolina governor who appointed him to his Senate seat in 2012. The two have split allegiances and in-state support since Ms. Haley started her run in February, potentially complicating their efforts in a must-win early primary state.
“I bet there’s room for three or four” candidates from South Carolina, Mr. Scott told the conservative radio personality Joey Hudson during a February interview.
Mr. Scott has consolidated support from several top Republican donors and political consultants while touring Iowa and New Hampshire, key early nominating states, along with South Carolina, his home base. The longtime political operative Rob Collins and the former Colorado senator Cory Gardner, two well-known figures in Republican politics, are the leaders of his affiliated super PAC. Last month, two top South Carolina operatives, Matt Moore and Mark Knoop, were tapped to lead the group’s in-state operations.
Mark Sanford, the disgraced former governor of South Carolina whose political comeback was cut short by his staunch criticism of Mr. Trump, joined the crowd.
“I’m a huge fan of Tim Scott,” he said.
A North Charleston native, Mr. Scott was raised by a single mother who worked long hours as a nursing assistant to raise him and his brothers. A car crash in high school sank his football dreams, but he attended Presbyterian College on a partial athletic scholarship before ultimately studying political science at Charleston Southern.
His first foray into politics was through the Charleston County Council. After serving one term in the State House, he defeated the son of Strom Thurmond and won a seat for the First Congressional District in 2010, making him the first Black Republican House member from the Deep South since Reconstruction. Just 15 years prior, he supported Mr. Thurmond’s Senate re-election campaign, serving as its statewide co-chairman.
In speeches, he often uses his biography — a story of humble beginnings and rapid rise on the political stage — to underline his view of America as a laudable work in progress rather than an irredeemably racist nation.
“This is the freest and fairest land, where you and I can go as high as our character, our grit and our talent will take us,” he was set to say on Monday. “I bear witness to that.”
The significance of his position is not lost on him. After a white gunman murdered nine Black parishioners at Emanuel African Methodist Episcopal Church in Charleston, Mr. Scott condemned the act as a “crime of hate” and joined a bipartisan group of lawmakers in supporting Ms. Haley’s removal of the Confederate emblem from South Carolina’s state flag. As the nation reeled from the deaths of several Black men at the hands of the police in 2016, he gave a speech from the Senate floor describing instances when he was racially profiled, including by the Capitol Police.
And the next year, after Mr. Trump said there were “very fine people on both sides” of a white supremacist march in Charlottesville, Va., Mr. Scott criticized his words, compelling the former president to invite the senator to the White House for a meeting about it.
Mr. Scott was a leading Republican voice on police reform negotiations after the murder of George Floyd in 2020, helping draft Republicans’ proposed legislation that called for narrow reforms but did not ultimately pass. In 2017, he spearheaded the creation of Opportunity Zones, an initiative that offers tax incentives to investors in low-income neighborhoods — many of which are predominantly Black.
It’s not clear, however, whether those efforts will result in added support from Black voters on a national stage. For many Black Democrats, Mr. Scott’s race matters little in light of his conservative voting record.
“The same Black people that would normally vote Republican, those are the people that will vote for Tim Scott,” said Representative Jamaal Bowman, Democrat of New York. “The majority of Black people,” he added, “aren’t going to come out for Tim Scott.”
Mr. Scott has already been tested as a presidential candidate. Days after starting his exploratory committee, Mr. Scott waffled on questions about whether he would support a federal abortion ban and did not specify the number of weeks at which he would restrict access to the procedure if elected president.
Mr. Scott’s entry to the race also comes amid soul-searching for Republicans on who will carry the party’s mantle in 2024. Mr. Trump has increased his edge in the polls even as he faces new personal and political controversies, including his indictment by a grand jury in Manhattan and subsequent liability in a sexual assault trial involving the columnist E. Jean Carroll. Mr. Scott has pointedly declined to criticize Mr. Trump head-on, preferring oblique references to his own rectitude.
The senator’s supporters have lauded that message, mostly positive and peppered with biblical references, as a welcome contrast to the vitriol that has become a feature of national campaigns.
“You haven’t seen him burned in effigy because of a side he’s taken,” said Mikee Johnson, a Columbia-area business owner and Scott donor. “He’s more the one who’s seemed to have brought some people together.”
Mr. Johnson added, “And I love him, because that’s his place.”
During a March presidential forum in Charleston hosted by the conservative Christian Palmetto Family Council, Mr. Scott highlighted themes likely to take center stage during his presidential campaign.
“There are two visions: One that feels like it’s pulling us down and another one that wants to restore faith in this nation,” he told the crowd after quoting the Epistle to the Galatians. “We believe that we need more faith in America, more faith in Americans, not less.”