Here's an excerpt:
Marco Rubio sounds worried. So do Jeb Bush and Paul Ryan. Their candidate, Mitt Romney, is losing to President Barack Obama. The GOP primary is becoming “counterproductive.” So when the three Republicans endorsed Romney over the past two weeks, it wasn’t so much about jockeying for a vice-presidential slot on Romney’s ticket. Their underlying goal was more fundamental: Stop the primary.Click here to read the full story.