Sen. John McCainJohn Sidney McCainMcCain rips Trump for attacks on press NSA spying program overcomes key Senate hurdle Meghan McCain says her father regrets opposition to MLK Day MORE (R-Ariz.) said New Jersey Gov. Chris Christie (R) did an excellent job handling the fallout from the bridge closure scandal and can move on from it — so long as nothing else comes out implicating the governor.

“I think that he can now move on as long as another shoe doesn’t drop,” McCain said Sunday on CNN's "State of the Union." “Too often, we have seen these things that it’s not the end of the story.”

McCain praised Christie’s decision to hold a marathon press conference on the September lane closures of the George Washington Bridge, saying that was the best way to move forward.

“I thought he did an excellent job by the very lengthy press conference,” McCain said. “Having gone through this, I know you’ve got to answer every question. You can’t leave any question unanswered.”

McCain, his party’s 2008 presidential candidate, said the bridge scandal was an obvious blow to Christie’s political prospects in the short term.

“How permanent this is to him, I think we’ll know in the days and weeks ahead,” McCain said.

Asked if he could imagine his aides conducting something like the bridge lane closures without his knowledge, McCain noted that a senator and governor have a different jobs and a different size of staff.

“Well, being the governor of a state, as you know, is dramatically different,” McCain said. “[Christie] points out he has 45,000 employees — although obviously these weren’t average employees.”