MS NOW host Lawrence O’Donnell on Monday commended ABC News reporter Rachel Scott, who reminded President Donald Trump about his recent promise to release the full video of a U.S. military strike against suspected drug smugglers in the Caribbean.

The “Last Word” host played footage of Scott inquiring about the matter during a White House press conference Monday, where Trump claimed he never made such a vow — and Scott told him he did. O’Donnell let the clip finish before stating, “That’s how you do it.”

“That’s how every reporter should do it with Donald Trump,” he argued. “Donald Trump said to Rachel Scott, ‘I didn’t say that … this is ABC fake news,’ to which Rachel Scott said, ‘You said that. You said that you would have no problem releasing the full video.’”

O’Donnell continued, “And that’s how you do it. You don’t let him get away with his lie.”

Trump was incensed when Scott asked about his commitment to release the full footage of the controversial Sept. 2 attack in the Caribbean, which included a follow-on strike against the shipwrecked survivors — and thus appears it could be a war crime.