According to Hillblog:
"Rep. Barney Frank (D-Mass.) thinks that President-elect Obama picked same-sex marriage opponent Rick Warren to give the inauguration invocation because Obama "overestimates" his ability to unify people."
Maybe it's gay left that overestimates its ability to bully and intimidate people into accepting its political and social agenda for America.
UPDATE: Of course, academic, journalistic and other liberal elites are perfectly willing to be bullied into submission. Normal, everyday people, not so much.
UPDATE II: That said, Obama does probably overestitmate his abilities to unify people. Once he starts having to decisions, which is what governing is, he will start offending people and their special interest groups. By this time next year, espect his popularity rating to be down significantly.