National Security Adviser H.R. McMaster didn't deny that Trump revealed classified info during his meeting with top Russian officials last week, and said Trump made the decision on the fly. He added that "The president wasn't even aware of where that information came from" as Trump wasn't briefed on the source.

• "I stand by my statement yesterday... the premise of that [WaPo] article is false," said McMaster. "Those releasing information to the press" are the real threat to national security.
• When did Trump decide to tell them that information? "He made the decision in the context of the conversation, which is wholly appropriate."
• Did Trump reveal the city where the tip came from? McMaster seems to concede that he did, but added, "it was nothing that you would not know from open-source reporting."
• Did the president share classified information? "We don't share what's classified and what's not classified... but it was wholly appropriate."