 Shafer moved to override Perdue's veto during the 2011 legislative session.In late 2008, after Lieutenant Governor Casey Cagle announced that he would be running for governor in 2010, Shafer filed paperwork with the Georgia State Ethics Commission authorizing formation of a campaign committee to run for lieutenant governor.In early 2009, Shafer announced endorsements from a majority of the Republican members of the Georgia General Assembly and decisively defeated Senator Eric Johnson, who had also announced as a candidate for lieutenant governor, in straw polls held at county Republican conventions.