McCain voted with Bush 100 percent of the time in 2008.

Thinkprogress:
According to a CQ analysis of Senate votes on issues President Bush expressed “an explicit, stated opinion,” Sen. John McCain (R-AZ) voted with President Bush 100 percent of the time in 2008 and 95 percent of the time in 2007. Despite his record, McCain’s supporters try to deny that a McCain presidency would be a third Bush term in terms of pushing similar policies. Recently, the campaign has gone to great lengths to avoid being seen with Bush.