Wouldn't it make the democrats look bad? This is not how primaries are supposed to go.
The idea that he only got a seat in the race by colluding with Democrats would hurt Bart a lot more than it would hurt his Democratic opponent or the Democratic party (which had nothing to do with it).
The idea that he worked with Democrats to throw out Cantor would increased hostilities within the two branches of the GOP and set them against each other even more than they already are.
The idea that they needed the Democrats would be an incredibly black mark against the Tea Party being able to claim this as an achievement and drive increased investment among its base.
The possible repercussions for the Democrats would be... people finally think they are growing a spine and doing what they need to do to win? I guess?
I guess it would be a win for the GOP Establishment versus the Tea Party as well, if Democrats got credit, but they still end up looking weak, losing a guaranteed seat, and they are still down one of their more experienced congress critters.
And it
is how primaries are supposed to go, at least in the state where it happened (that's the whole point of open primaries). A number of people felt they would rather have Bart than Cantor (the Democrats aren't voting for him, from what I've heard, to get the Democratic challenger elected, which is very unlikely to happen, but because they would genuinely prefer him in Congress). Now, the
reason they would prefer him is because it would weaken the Republican party and hurt the establishment... but honestly, that's not all that different from the reason the Tea Party supports him!