The latest television ad touting GOP presidential contender Marco Rubio proclaims that he is “leading the fight” to stop President Obama’s nuclear deal with Iran. But the new spot, which hits the airwaves Wednesday, is not the work of his official campaign or even his allied super PAC.Source: Groups backed by secret donors take the lead in shaping 2016 elections...

Not a very good Fourth for The Donald. South Carolina Sen. Lindsey Graham (R), a candidate for president in 2016, stated it plainly: "He's running to be president of all of us. It takes a level of maturity and thoughtfulness and demeanor that's not being exhibited here."Source: The Romney half-century?...