There's a lot of anti-DEM sentiment in this country. That's what the DEM party needs to stop.

open and closed. As I understand it each state is responsible for determining their primary format, I am fine with that and I don't see any effort to get states to change anything from the national level. So seems a moot point really.

Who honestly thinks huge numbers of republicans are switching over just to screw with the democrats? It's a conspiracy theory all its own. The amount of coordination it would take to actually do anything meaningful with that tactic is ridiculous.

...it's naive to think there aren't manipulative, disingenuous people who wish to increase dissension among the ranks of those they oppose. People aren't going to bother doing so in a state where the underdog is already expected to win with ease, or in states that aren't very consequential (delegate-wise). It's certainly within the realm of possibility, though, that such folks were the difference between Sanders winning and losing Michigan. In Ohio, on the other hand, there was a hometown guy in the race and the "Stop Trump" movement had an opportunity that wasn't available in Michigan. Ohio and Michigan are 2 fairly similar states that had much different results on the Democratic side.

I don't have any idea how many people crossover for the purpose of furthering dissension, but it'd be foolish to think such people don't exist.

Do you know how many would be required to turn a state from Hillary +8 to Sanders +8? That's a lot of votes you are telling me will go to the Republicans in the fall. If this is something people truly believe, they should be very scared.

I think the most likely reasoning is that a lot of independents have been swayed to vote for a Democratic candidate when they may not have been inspired to before. We risk the likelihood of alienating them when we tell them we don't want them to participate in selecting someone they would vote for in November.