Former New Jersey Gov. Chris Christie is set to launch his presidential campaign on Tuesday night,
Earlier on Tuesday, Christie filed his campaign paperwork with the Federal Election Commission.
A Monmouth University poll released last week also showed Christie's favorability rating among Republican voters deeply underwater, with just 21% viewing him favorably and 47% viewing him unfavorably.
Christie has lamented what he views as a lack of candidates in the GOP field who can adequately attack Trump head-on.
He has frequently cited one 2016 debate in which he lambasted Sen.
Christie's campaign, which is expected to feature a sprawling offensive against Trump, marks a full-circle moment for the former governor,
who quickly endorsed Trump after dropping out of the 2016 presidential race and largely remained a vocal ally during Trump's four years in the White House.
However, Christie broke with Trump over the Jan. 6, 2021, insurrection and has remained one of his loudest critics within the GOP,
Still, he insisted he wouldn't join the race just to take on Trump if he didn't see a path for himself, saying he's "not a paid assassin."