HBO comedian Bill Maher offered his take on the results of the 2012 presidential election, posting a piece on his blog Thursday that highlighted what he sees as the most costly mistakes made by the Romney campaign.

Writing Thursday, Mr. Maher criticized Mr. Romney’s varying stances on key issues, saying his willingness to conform to Republican policy positions ultimately cost him votes from independents and Democrats searching for an alternative candidate.

“Take Mitt’s pivot from being “severely conservative” to being “the white Barack Obama.” Sure, everyone tacks to the middle after the primaries, but Mitt’s performance was different: it was a full-scale repudiation of just about every idea that conservatives hold dear. The positions were changed. The rhetoric was completely different. He was basically Barack Obama, Caucasian Edition,” wrote Mr. Maher.

The HBO host, who earlier this year donated $1 million to super PAC supporting President Obama’s re-election, added that he still thinks Mr. Romney was aligned with the Republican Party, which he notes has some major issues to resolve.

“There are other reasons, of course, like Mitt being unlovable to anyone not named Ann Romney, but nothing trumps the idea that 2/3rds of America thinks the other 1/3 is a frightening conglomerate of Bible-thumpers, xenophobes, and vaginophobes. (Not a word, but should be.),” wrote Maher.

Mr. Maher, who has in the past inserted himself into the political debate, is known for his controversial remarks. Speaking on Wednesday, Mr. Maher stirred debate over the future of the Republican Party when he compared Fox News to Nazi propaganda.

“It was a little [like] Hitler’s bunker, wasn’t it?” Mr. Maher quipped, referring to the location of the Nazi ruler’s suicide. “I wanted to rush in with cyanide capsules there. I thought he was going to say, ‘I do not want to live in a world without National Socialism.’ Okay, Mrs. Goebbels.”

“I think Republicans have to start getting their news from another source other than Fox News,” Mr. Maher added. “I’m not kidding about this. I think this really screws them up.”