Can establishment Republicans stop Donald Trump? Rubio, Cruz take aim at GOP frontrunner

Donald Trump racked up seven wins on Super Tuesday and holds a 100 delegate lead over Ted Cruz which has establishment Republicans worried about his frontrunner status. Joined by 2008 Republican nominee Mitt Romney, Cruz and Marco Rubio have launched sustained attacks of Trump’s conservative credentials and record. At times, the Republican race took a decidedly personal — and anatomical — turn. We get a GOP status report from The Washington Post’s Dan Balz, The New York Times’ Jonathan Martin and The Atlantic’s Molly Ball.