As is so often the case, the great Thos. Sowell hit the nail on the head:
Donald Trump is dangerous in at least two senses. If, by some tragic miracle, he should become the Republicans' candidate for president in 2012, that would be the closest thing to an iron-clad guarantee of a second term in the White House for Barack Obama.
What seems more likely is that Donald Trump as a candidate for the Republican nomination would use his superior articulation skills-- not to mention brash irresponsibility-- to trash all the other Republican candidates for that nomination, leaving them damaged goods in the eyes of the public, and therefore less able to gather the votes needed to prevent the reelection of Obama.
He would probably make Howard Stern his Secretary of State.
Yes, but the big disappointment for me is that so many so called conservatives were supporting Trump. I can understand some Obamabots and low information voters singing the praises of "The Donald", but conservatives? Trump isn't even a conservative to begin with. I suppose the "birther" stuff had such a strong hold on some people that they would support pretty much anyone pushing it. Either way, it's done now. The birth certificate conspiracy has been shot to pieces and with it any real reason some on the right were supporting Trump - throw in the video of his speech dropping repeated F bombs and I think it is safe to say it's over for Trump running as a Republican.