 It was often reported that McCain had grown more conservative throughout his tenure in the Senate, according to various studies.During Barack Obama's presidency, McCain was one of five Republicans most likely to vote in line with President Obama's position on legislation; he voted with Obama's position more than half the time in 2013.The non-partisan "National Journal" published an analysis of members of Congress in which it gave McCain a composite ideological rating of 60% conservative and 40% liberal in 2013.