Pence, the nation’s 48th vice president, will formally launch his bid for the Republican nomination with a video and kickoff event in Des Moines, Iowa, on Wednesday, his 64th birthday.

Pence served as a U.S. House member and governor of Indiana before becoming Trump's running mate and eventual vice president.

Now officially in the race, Pence aims to secure the Republican nomination in a field already populated by higher-polling candidates, including his onetime boss Donald Trump. Penc

Mr. Pence, who filed paperwork declaring his candidacy, was once a stalwart supporter and defender of Donald J. Trump, but split with his former boss after the Jan. 6 attack on the Capitol.

The hurdles Mike Pence faces as the former vice president prepares to launch a White House campaign and challenge his former boss - Donald Trump

Former Vice President Mike Pence has filed paperwork declaring his campaign for president in 2024, setting up a historic challenge to his former boss, Donald Trump

Pence has spent months laying the groundwork for an expected run, courting donors and visiting states with early primaries.