I normally roll my eyes at Scarborough's histrionics, but he's absolutely right on this one. The Democratic Party is a big tent party, so it will naturally have differences across regions, particularly on cultural issues such as abortion, but also on economics (which is where I disagree with Bernie). The same goes for the GOP. Factions within the Democratic party have to learn to coexist, or else there is a real risk that it will be consigned to represent the coasts and not much more.
Sometimes party purists just need to shut the hell up. You can't have a San Francisco Democrat running in Nebraska, for God's sake. I'm pretty staunchly pro-choice, but if Nebraskans are largely pro-life then it only makes sense for the Democrat to represent their interests and values, not those of people thousands of miles away.
Exactly right on both of these. Many Utah Democrats are party purists and it's got us... a super-super minority in the state legislature, no Congressional seats, no gubernatorial win in 30 years, no Senate win in 40 years, and so on and so on. They think they're San Francisco Dems (some with an anti-Mormon attitude) in one of the reddest states in the nation.