CONCORD, N.H. — Marco Rubio fired back at Republican presidential rival Donald Trump on Thursday morning, telling reporters here it is “ironic” that Trump is attacking his personal finances given his history of business-related bankruptcies.

“I find it ironic that the only person who’s running for president that’s ever declared a bankruptcy — four times in the last 25 years — is attacking anyone on finances,” said Rubio, referring to the  bankruptcies declared by the real estate mogul’s companies.

Rubio made his comments at the New Hampshire State House, where he officially filed for the Republican primary.

Earlier Thursday, Trump continued to assail Rubio over his use of a credit card issued to him years ago by the Republican Party of Florida when he was in the state legislature.

“We’ll see what's happening with Rubio,” Trump said on MSNBC’s “Morning Joe.” “He's starting to get very hit hard on his credit card things and other things that they're finding out.”

Rubio reimbursed the state party for flights that he said were mistakenly billed to the party and paid for personal expenses he had charged to the card.

Rubio said Wednesday that he plans to release credit card records from 2005 and 2006 that have not been made public before. Asked what people will see in those records, he declined to say.

“You’ll see them when they come out. We’ve been preparing them for a while, and when they’re ready, we’ll make them available. It’s not a big deal,” Rubio said.

He added: “I don’t think people will be impressed with it."