Minutes before Jared Kushner arrived for questioning Monday morning by Senate investigators probing Russian interference in the 2016 election, President Trump was busy on Twitter taking pot shots at people he said should be investigating “Crooked Hillary.”

And in one remarkable tweet, he called California Rep. Schiff, the top Democrat on the House intelligence panel, “sleazy.”

Schiff has been an outspoken advocate of hearing testimony from Trump associates on their contacts with Russian officials during last year’s election.

The president tweeted that “Sleazy Adam Schiff, the totally biased Congressman looking into ‘Russia,’ spends all of his time on television pushing the Dem loss excuse!”.

In an tweet posted minutes earlier, Trump questioned why those investigating Russian meddling in the 2016 election and possible collusion by members of his campaign weren’t digging into Hillary Clinton’s “crimes & Russia relations.”

In doing so, the president took his latest swipe at Attorney General Jeff Sessions, including him in the list of people who he said should be investigating Clinton’s potential Russia links.

“So why aren’t the Committees and investigators, and of course our beleaguered A.G., looking into Crooked Hillarys crimes & Russia relations?” the tweet said.

Trump condemned Sessions’ recusal in a New York Times interview last week, saying he never should have taken the job as attorney general.

Jared Kushner is speaking in a closed session Monday to staff on the Senate intelligence committee. Earlier, he released an 11-page statement detailing four contacts with Russians during Trump’s campaign and transition.

Kushner in those prepared remarks says he “did not collude, nor know of anyone else in the campaign who colluded, with any foreign government.”

Kushner is to meet with lawmakers on the House intelligence committee Tuesday.