Grading the statements of the candidates

The blog 538 (see here) points us to PolitiFact's grading of statements by the Republican contenders for president (see graph below, click to enlarge).

Micah Cohen at 538 says:

As you can see, some candidates have fared better than others. Over 60 percent of Representative Michele Bachmann’s statements were ruled either False (“The statement is not accurate”) or Pants on Fire (“The statement is not accurate and makes a ridiculous claim). Herman Cain and former Senator Rick Santorum didn’t fare any better, although both have not had that many grades given to them.