His naked transformation into a full-spectrum right-winger, sudden professions of religiosity, and weird dive into the fever swamps of Birtherism definitely seem to indicate that Donald Trump's serious about seeking the Republican presidential nomination. Some are tempted to dismiss him as another Ross Perot, but I think John Ziegler hits the nail on the head as to why his candidacy is resonating with conservative voters:
Trump is now in a position where he could be extremely dangerous. Conservatives are aching for someone with the gonads to take it to Obama and really shake things up in Washington if he happens to win. Many are so fed up that they are willing to jump on almost any bandwagon that even appears to be headed in that direction, even if the driver, like Trump, is totally unreliable.