MIAMI — Florida Gov. Ron DeSantis entered the 2024 presidential race on Wednesday, stepping into a crowded Republican primary contest that will test both his national appeal as an outspoken cultural conservative and the GOP’s willingness to move on from former President Donald Trump.

The 44-year-old Republican revealed his decision in a Federal Election Commission filing before an online conversation with Twitter CEO Elon Musk.

It marks a new chapter in his extraordinary rise from little-known congressman to two-term governor to a leading figure in the nation’s bitter fights over race, gender, abortion and other divisive issues. DeSantis is considered to be Trump’s strongest Republican rival even as the governor faces questions about his far-right policies, his campaign-trail personality and his lack of relationships across the Republican ecosystem. Still, he has generated significant interest among GOP primary voters by casting himself as a younger and more electable version of the embattled former president.

DeSantis’ audio-only announcement was to be streamed on Twitter Spaces beginning at 6 p.m. EDT.

He was expected to meet with donors at the Four Seasons Hotel in downtown Miami before the evening announcement and appearances on conservative programs, including Fox News and Mark Levin’s radio show.

DeSantis’ entry into the Republican field has been rumored for months and he is considered one of the party’s strongest candidates in the quest to retake the White House from Democratic President Joe Biden. The 80-year-old incumbent, Republicans say, has pushed the nation too far left while failing to address inflation, immigration and crime.

The Republican nominee will face Biden on the general election ballot in November 2024.

He joins a field that also includes former U.N. Ambassador Nikki Haley, Sen. Tim Scott of South Carolina, former Arkansas Gov. Asa Hutchinson and biotech entrepreneur Vivek Ramaswamy. Former Vice President Mike Pence is also considered a likely presidential candidate but has not yet announced a bid.

DeSantis begins his campaign in a top tier of two alongside Trump based on early public polling, fundraising and campaign infrastructure.

The two GOP powerhouses have much in common.

DeSantis, who likely would not have become the Florida governor without Trump’s endorsement, has adopted the former president’s fiery personality, his populist policies and even some of his rhetoric and mannerisms.

Yet DeSantis has one thing Trump does not: a credible claim that he may be more electable than Trump, who faces multiple legal threats and presided over Republican losses in three consecutive national elections.

On Tuesday, a New York judge tentatively scheduled Trump’s criminal trial to begin March 25, which falls in the heart of the presidential primary season. Trump pleaded not guilty last month to 34 felony counts of falsifying business records at his family company, the Trump Organization.

DeSantis, just six months ago, won his reelection in Florida by a stunning 19 percentage points — even as Republicans in many other states struggled. He also scored several major policy victories during the Republican-controlled Legislature’s spring session.

Aware of DeSantis’ draw, Trump has been almost singularly focused on undermining his political appeal for months. Trump and his team believe that DeSantis may be Trump’s only legitimate threat for the nomination.

Hours before the announcement, Trump argued in a social media post that “Ron DeSanctus” cannot win the general election or the GOP primary because of his previous votes in Congress on Social Security and Medicare.