“His days of leadership in the Republican Party are done"

“It’s pretty disgusting why he did it because he’s opportunistic,” said Tony Fratto of Hamilton Place Strategies, who worked in the George W. Bush White House. “His days of leadership in the Republican Party are done.”

Fratto also brought up how Christie had previously criticized Trump for his anti-Muslim and immigrant comments. “Did he mean those things or is he a liar?”

Endorsing Trump was “probably not his brightest political move. It’s right up there with the bridge,” said Stuart Roy, a Tom Delay alum now with Strategic Action Public Affairs.

“It will definitely be a dark cloud over his seriousness as an elected leader,” added Roy, one of whose clients is American Future Fund, which just launched a multimillion-dollar ad campaign attacking Trump for allegedly ripping off students who attended Trump University. “He was a serious federal prosecutor, he was a serious governor, he was a serious presidential candidate and now this is an unserious endorsement.”