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.

At the other end of the spectrum lie Representative Ron Paul, former Utah Gov. Jon M. Huntsman Jr. and Mr. Romney. Mr. Huntsman garnered the most favorable grades, but has had few claims evaluated. Mr. Paul did particularly well relative to the other candidates, earning an unambiguous True verdict for almost a third of his statements and a Mostly True for almost another third.

In addition to Ms. Bachmann, Mr. Santorum and Mr. Cain, former House Speaker Newt Gingrich round out the group of candidates who had more than half their statements judged more wrong than right, although just barely for Mr. Gingrich.

In addition to Mr. Paul and Mr. Huntsman, Mr. Romney and — by a hair — Texas Gov. Rick Perry were judged to have packed more correct than incorrect into their statements.

Of course, whichever of these candidates wins the Republican nomination will meet President Obama in the general election. So how has Mr. Obama fared?

Mr. Obama seems particularly adept at avoiding the Pants on Fire designation. PolitiFact has analyzed a whopping 320 claims made by the president and deemed 71 percent of them at least half right. Only Mr. Paul and Mr. Huntsman – at 76 percent and 86 percent respectively — scored higher.