Christie, 60, enters the race as a decided underdog, six years after his 2016 presidential campaign failed to gain traction amid a crowded field that included Trump.
In March, Christie told Axios he would not vote for Trump in 2024 even if the former president was the Republican nominee.
He has played the role of attack dog before: in a memorable presidential debate appearance shortly before he ended his 2016 campaign, Christie mocked U.S.
He and Trump exchanged plenty of barbs during the early stages of the 2016 campaign.
Christie was also a candidate for the 2012 Republican presidential nomination but was beaten by eventual nominee Mitt Romney.
Persons:
Chris Christie, Donald Trump's, Christie, Axios, Trump's, Trump, Mike Pence, Ron DeSantis, Marco Rubio, Washington, Charles Kushner, Jared Kushner, Jean Carroll, Mitt Romney, Susan Heavey, Joseph Ax, Nathan Layne, Katharine Jackson, Andrew Heavens
Organizations:
PRINCETON, Former New Jersey, Trump, Reuters, Saint Anselm College, Republican, Democratic, U.S, Capitol, Republicans, Thomson
Locations:
New Jersey, New Hampshire, Florida, New York City