Julián Castro: Presidential candidates should be required to release tax returns

Former Housing and Urban Development Secretary Julián Castro, who is running for president, said at a CNN town hall Thursday that he believes presidential candidates should be required to release their tax returns. 

“I support making it a requirement by statute, Congress passing a law that requires people who are running for president to submit 10 years of their tax returns,” he said.

Castro added that he would release 10 years of his own tax returns “during the next few weeks.”

He slammed President TrumpDonald John TrumpTrump cites tax cuts over judges as having biggest impact of his presidency Trump cites tax cuts over judges as having biggest impact of his presidency Ocasio-Cortez claps back at Trump after he cites her in tweet rejecting impeachment MORE's refusal to release his returns, saying Trump must have something to hide. 

“It is astonishing that this president still has not released his taxes,” Castro said. “It’s clear that he has something to hide, I don’t.”

But Castro stopped short of saying that it should be a constitutional amendment.

Several other Democrats competing for the party's 2020 presidential nomination, including Sens. Elizabeth WarrenElizabeth Ann WarrenBiden calls for equal pay for US women's soccer team Biden calls for equal pay for US women's soccer team Trump steadfast in denials as support for impeachment grows MORE (D-Mass.), Kirsten GillibrandKirsten Elizabeth GillibrandBiden calls for equal pay for US women's soccer team Biden calls for equal pay for US women's soccer team Trump steadfast in denials as support for impeachment grows MORE (D-N.Y.) and Amy KlobucharAmy Jean KlobucharElection security bills face GOP buzzsaw Election security bills face GOP buzzsaw Julián Castro defends going on Fox: I'm focused on 'the people out there watching' MORE (D-Minn.) have already released their returns. President Trump, meanwhile, has repeatedly refused to do so, insisting he is under audit. 

The IRS has said that an audit does not prevent someone from releasing their own tax information.