Sen. Tim Scott filed paperwork Friday to run for president, joining a growing field of Republicans angling to overtake Donald Trump as the party’s 2024 standard-bearer.

Scott, who grew up poor and in 2012 became the South’s first Black senator since Reconstruction, is expected to draw heavily from his own biography and success story as he talks about economic and social policy on the presidential campaign trail. Known as an upbeat, mild-mannered presence in the Senate who neither fiercely embraced nor sharply rebuked Trump’s politics, Scott in his underdog campaign is seeking to form a coalition of traditional conservatives, evangelical Christians and moderate Republicans.