House Speaker Paul Ryan said Thursday that Donald Trump should release his tax returns.

“I released mine,” said Ryan, who was Mitt Romney’s GOP running mate in the 2012 election. “I think he should release his.”

Trump’s running mate, Indiana Gov. Mike Pence, and the Democratic ticket of Hillary Clinton and Tim Kaine have all made their taxes public.

Trump has said he won’t release his returns because the IRS is auditing them.

But in an interview published Thursday, Donald Trump Jr. suggested his father isn’t releasing them because they’re so complicated.

“He’s got a 12,000-page tax return that would create . . . financial auditors out of every person in the country asking questions that would distract from [his] main message,” he told the Pittsburgh Tribune-Review.