Jr. may be in big-boy trouble

Donald Trump Jr. may want to lawyer up.

The House Intelligence Committee reopened its Russia investigation on Wednesday and immediately voted to give special counsel Robert Mueller unfettered access to transcripts from all its previous closeddoor interviews — a move that could spell big trouble for the Trump son.

Junior (photo) testified before the committee in December 2017, and Rep. Adam Schiff, the panel’s newly minted Democratic chairman, has long intimated that the presidential heir may have lied under oath in those proceedings — explosive allegations that could prompt Mueller to file perjury or obstruction charges.

The vote to release the Russia probe transcripts, the committee’s first act under Schiff’s new leadership, came just hours after President Trump complained in his State of the Union address that “ridiculous partisan investigations” are holding the country back.

A committee source familiar with the matter said the vote was unanimous.

Schiff (D-Calif.) specified he’s releasing the interview transcripts to Mueller’s office for the purpose of possible prosecution, with “no restrictions.”

A spokesman for Mueller declined to comment “on our interactions with Congress.” A representative for the Trump scion did not respond to emailed questions.

But the President derided Schiff as a “political hack who’s trying to build a name for himself. It’s just presidential harassment and it’s unfortunate and it really does hurt our country,” Trump told reporters at the White House.

Others in Trump’s inner circle who have testified before the House panel include son-inlaw Jared Kushner, former campaign chiefs Steve Bannon and Corey Lewandowski, exWhite House aide Hope Hicks and current campaign manager Brad Parscale.