A new Quinnipiac poll Wednesday morning has more bad news for Ben Carson. The doctor is down to third place, at 16 percent. In the last Q poll, at the beginning of November, he was in second, just one point behind Donald Trump. Now he trails Trump by 11. That’s in line with a series of other recent polls that show him losing much of his edge. When I looked at Carson’s polling two weeks ago, it looked like he might be facing a downturn. Now he’s lost between a quarter and a third of his support, depending on how you run the averages. It’s a collapse.

Here’s what his trend looks like against Trump’s:

Trump and Carson have been twinned in media coverage for months, and not just because they’ve been leading the field: two outsider candidates, atypical presidential contenders with no debt to the traditional party structure, little interest in old-fashioned political pieties, and no practical experience in either campaigning or policymaking.