Who lies, who tells the truth?

Who is lying?  Who is telling the truth?  Politifact grades the Republican candidates on whether their statements are true or false.  The results?  Bachmann, Santorum and Cain lie more than half of the time.  Huntsman and Paul mostly tell the truth.

Source: http://fivethirtyeight.blogs.nytimes.com/2011/09/23/a-look-at-politifact-grades-of-candidates/