JD Vance was bored even before Donald Trump launched into his 99-minute speech last night, complaining to House Speaker Mike Johnson on a hot mic. […] “By the way, I think the speech is going to be great. But I don’t know how you do this for 90 minutes,” said Vance, clearly longing for his couch. To which his sharper colleague, who was obviously aware of the hot mic, made a quick and smooth pivot.