Despite President Trump’s tweets, meeting with a foreign power to get ‘dirt’ is not opposition research, argues deputy editorial page editor Ruth Marcus. (Video: Adriana Usero/The Washington Post)

President Trump is a lawyer’s client from hell. He lacks self-control, cannot tell the truth and will not absorb legal advice he doesn’t like. Most clients don’t incriminate themselves in public. Again and again. Trump does, however.

The Post reported:

“Fake News reporting, a complete fabrication, that I am concerned about the meeting my wonderful son, Donald, had in Trump Tower,” the president wrote in one of several early morning tweets Sunday, many of which took aim at the media. “This was a meeting to get information on an opponent, totally legal and done all the time in politics — and it went nowhere.”
He concluded by further distancing himself from the meeting his son arranged, writing: “I did not know about it!”
Trump was responding to a Washington Post report this weekend that although he does not think his eldest son intentionally broke the law, he is worried that Trump Jr. may have unintentionally stumbled into legal jeopardy and is embroiled in [special counsel Robert S.] Mueller’s investigation largely because of his connection to the president.

That’s worse than acknowledging to NBC’s Lester Holt that he was thinking about the Russia investigation when he fired then-FBI Director James B. Comey. It’s worse than his nonstop attempts to obstruct the prosecutors — who are investigating an obstruction-of-justice case. (You cannot make this stuff up.)