 "Politico" called Corbett the most vulnerable incumbent governor in the United States, "The Washington Post" ranked the election as the most likely for a party switch, and the majority of election forecasters rated it "likely Democratic".Despite Corbett's unpopularity and speculation that he would face a primary challenge, he was unopposed in the Republican primary.Attorney and conservative activist Bob Guzzardi announced a run against Corbett, however the state Supreme Court ordered Guzzardi's name struck from the ballot due to his failure to file a statement of financial interest, leaving Corbett unopposed for the Republican nomination.