I have a question about US Congressional committees and subpoenas. There seem to be a few people who "refuse" to cooperate in either supplying documentation or giving testimony. I don't get that. If authorities demand you do something, don't you kind of have to do it? Why aren't those folks in jail yet then? Or are these not subpoenas as I understand them, that is, are they of a type that have no teeth.
More generally, if these guys thought they were doing the right thing, wouldn't they be jumping at the chance to give testimony in public, make their positions known? I keep reading rumours of them asking for pardons, presumably based on the hope that Trump, or a suitable acolyte, gets into power in the future. Shouldn't we be suspicious of people who lobby for pardons? That doesn't strike me as something innocent heroes would do.
This last question is out of left field. Have there been rumours at any time of Trump "selling" pardons? I don't necessarily mean cash deals, although I don't rule that out. He doesn't strike me as the kind of person who does anything for someone else without a quid pro quo. Not many people do in politics, is my guess, but he seems especially prone.