The Susan B. Anthony List yesterday announced its Pro-Life Leadership Presidential Pledge and said it asked all of the candidates who have officially announced a presidential campaign or exploratory committee to sign the pledge certifying they will not just check off the pro-life box but show true pro-life leadership if elected president.

Signers of the pledge include Michele Bachmann, Newt Gingrich, Ron Paul, Tim Pawlenty and Rick Santorum and the pro-life organization is calling on pro-life activists to put pressure on those candidates who have refused to sign, Mitt Romney, Herman Cain, and Gary Johnson.

Johnson's not signing is no surprise given his pro-abortion views but Romney has been campaigning as a pro-life candidate since converting to the pro-life position before the 2008 presidential election.

The problem stemming from there has not improved for Mr. Cain.