This Republican primary is..... well, different than any other I have seen.
I see three primary reasons for it being different. One is that you have a field of weak candidates. Two: One candidate has the best chance of competing against Obama, but is a moderate. Three: the teas.
As far as one, well, sometimes that happens.
The teas have been touted and promoted by the media and many R’s as a powerful group. I am not saying that they are not, but the representation that they are a much bigger share of the population is the problem. Depending of the study, it seems that the teas are maybe 4% of the voters, yet the media portrays them as a major faction of the R party. By how much they are represented by pols or in the media one would think that they are more like 50% of the voting public.
That, I think, is the problem. The candidates think that too. Each seems to want to outdo the other on how far to the right they are and how radically they are that.
So, you have the mainstream R’s, that are not teas, voting for the best candidate to beat the President, and the small faction wanting a radical that cannot and would not appeal to the moderates/independents.
Anyway, it is my opinion that the overselling of the strength and size of the teas is the reason for the problems.
One other thing. I am not in favor of crossing over and messing with the R’s. I remember the last Presidential election where the right wing talking heads, primarily Rush Limberger, saw Clinton as the primary winner and told his dittoheads to go vote Obama to make it harder for her. I still wonder how the R’s that did his bidding feel about Obama winning. So, I think it a bad and dangerous thing.