Former New Jersey Gov. Chris Christie, a top GOP Trump critic, files paperwork to launch 2024 presidential campaign

Former New Jersey Gov. Chris Christie filed paperwork to run for president, injecting a dose of anti-Trump criticism into a Republican primary field that has largely been reluctant to cross its leading candidate.

Christie, 60, was set to personally announce his campaign Tuesday evening during a town hall event in Manchester, New Hampshire, the state where his last presidential bid came undone.

Christie placed sixth in that state’s 2016 primary and dropped out of the race shortly thereafter. In a surprising move, Christie endorsed then-candidate Donald Trump just days later. He went...