Of course not. If they are, this was the first time the two faced off, and do not yet warrant generalizability.
I'd say Cath's view comes closest to my own. We must wait to see whether this division persists and deepens or dissipates; one election cycle and the following year, combined with no structural splits or organized social movements like the Tea Party, does not a party civil war make. There's the potential for it to worsen, definitely, and lead to a situation like what happened in the GOP, but it hasn't gotten anywhere near that bad so far and, assuming party leadership doesn't intentionally exacerbate the problem, it won't reach that point.
Poll
