Chris Christie has launched his latest attack on Marco Rubio — this one over the Floridian’s joke about how this weekend’s snowstorm shut down the federal government.

“Fourteen people died across the country, and that shows a real immaturity from Senator Rubio to be joking as families were freezing in the cold, losing power and some of them losing their loved ones,” Christie said Sunday when asked about Rubio’s joke on CNN’s State of the Union.

During a town hall Saturday in New Hampshire, Rubio cracked that the shutdown of Washington, D.C., during the blizzard was “one of the best things to happen to the republic in a while.”

As he has often during the campaign, Christie used the incident to contrast his executive experience as governor with Rubio’s years in the Senate, where members make decisions of little consequence.

“Voting yes or no in the United States Senate every day — sitting where they tell you to sit, coming when they tell you to come, leaving when they tell you to leave,” Christie said. “It sounds like school to me, and not like the kind of job that the presidency is.”

Rubio spokesman Alex Conant responded: “Chris Christie wasn’t even going to return to New Jersey until he was shamed into it. Christie should worry less about Marco’s jokes and more about his own liberal record on gun control, judges and abortio