Chris Christie is making another run for the White House — a long-shot campaign in which the former New Jersey governor will seek to position himself as the field’s most credible critic of Donald Trump.

Christie, who filed campaign paperwork on Tuesday, has spent weeks sharpening his attacks on Trump in preparation for his launch, testing a message that he — and he alone in the growing field of 2024 GOP contenders — has the guts and the skill to knock the former president off his perch atop the party.

The problem for Christie: It was too little, too late when he tried that tactic in 2016. And Republican primary voters don’t seem any more open to it today.