Rubio gets an important endorsement and no one seems to care. He's the Republican's best shot at beating Hillary, yet he is effectively being blocked by Trump and Cruz, and Carson to a degree. Trump isn't going anywhere, and I think the implosion of Perry, Walker, and Bush can be directly attributed to Trump. To me, Rubio is nothing more than a Republican Obama. With the other candidates in the race, I don't see Rubio winning Iowa, New Hampshire, or South Carolina.