Republicans Damaging Each Other With Friendly Fire

SEE HERE Ronald Reagan had a rule he called the eleventh commandment which was to say nothing bad about other Republicans.  The current crop can't seem to keep from committing hari-kari on each other which is clearly damaging the brand.  That's of course what the Democrats and the media pseudo-objective freaks want, a circular firing squad to soften up the opposition for Obama.  It's too bad really.  I think it would be much more interesting to have debates about principles and ideas instead of these tedious media circuses.  Why do the Republicans let this happen?  Can't they organize their own debates and pick more objective folks that won't ask inane and frankly insane questions?