Trump was reportedly furious with Michael Flynn for making Vladimir Putin wait 6 days for a return call

[Trump] then went on to explain that he has serious reservations about Mike Flynn's judgment and illustrated with a story from that day in which the president apparently discovered during his toast to Teresa May that [redacted] had called four days ago. Apparently, as the president was toasting [British Prime Minister] May, he was explaining that she had been the first to call him after his inauguration and Flynn interrupted to say that [redacted] had called (first, apparently). It was then that the president learned of [redacted] call and he confronted Flynn about it (not clear whether that was in the moment or after the lunch with PM May). Flynn said the return call was scheduled for Saturday, which prompted a heated reply from the president that six days was not an appropriate period of time to return a call from the [redacted] of a country like [redacted]. ("This isn't [redacted] we are talking about.") He said that if he called [redacted] and didn't get a return call for six days he would be very upset. In telling the story, the president pointed his fingers at his head and said "the guy has serious judgment issues." [James Comey memos]