"One of the sins of the journalism business is that we cave for access," Nyhan said.
He said the media's favorable coverage of Arizona Senator John S. McCain's campaign was a product of high access given to reporters by McCain.
"McCain was given champagne and caviar treatment by the media," Nyhan said.
He said television coverage also gives a distorted picture of the political process.
"Television destroyed political parties and political organizations," Nyhan said. "It gives viewers the false perception that they are in on it."
Despite the problems Nyhan sees with election coverage, he said his choice will come down to whoever is the strongest candidate.
"Give me a guy who is well intentioned and smart--smart is good--and will do the right thing under pressure," Nyhan said.