Why did a bunch of Democrats decide they didn't like Carson anymore? And some of them thought he's not qualified but Perry is?
Carson's problems were more publicized and got more media play than Perry's, so Democratic senators who'd previously supported Carson got more pushback from their constituents.
What were these problems?
He got more votes in committee from Democrats than he did in the entire Senate. It's absurd.
The constituents are trying to put the screws on. It's expected, if the difference is still stark.