Recent polling finds that Democrats Russ Feingold (Wisconsin), Evan Bayh (Indiana), and Michael Bennet (Colorado) are all doing quite well in their respective Senate races versus Republicans Ron Johnson, Todd Young, and Darryl Glenn. But essentially all of that polling was done before Aetna announced that it is bailing out of most of the Obamacare exchanges, thereby speeding up Obamacare’s slow-motion death spiral.

Alone among those running in competitive Senate races this time around, Feingold, Bayh, and Bennet actually voted for Obamacare. Indeed, without each of their votes—which gave Democrats the necessary 60 votes in the Senate—we wouldn’t have Obamacare. That should be a potent message to voters.