In an exchange with former Secretary of State and prominent Obama supporter Colin Powell during NBC's live inauguration coverage on Monday, NBC Nightly News anchor Brian Williams urged Powell to go after Republicans: "General, there's just flat-out hatred out there, too. There's nastiness out there in the land. There's nastiness between these two parties....Let's especially go to the Republican Party....What do they do to widen, if it is in their interest, widen their doorway to membership, to entry?" Powell seized the opportunity to double down on his recent smear of the GOP having a "dark vein of intolerance": "I've been...