In reality, he showed support for Ron Paul when he said, "I like Ron Paul. I really do. I really do! I like Ron Paul. The guy is intellectually consistent"
In reality, the media would be looping this if he had said the same thing about any of the other candidates with the same tone he used, which was that of sincerity.
That Colbert blurs the lines between satire and reality is part of his genius, and what attracts progressive thinkers of all parties to him.