Romney Now Clear Front-Runner

Item: Romney pads lead; Santorum still in it: Delegate front-runner picks up key Ohio victory /David Espo, AP

More Info: On the busiest night of the campaign, Romney scored a home-state win in Massachusetts to go with primary victories in Vermont and in Virginia – where neither Santorum nor Newt Gingrich was on the ballot. He added the Idaho caucuses to his column. … Santorum countered crisply, winning primaries in Oklahoma and Tennessee and the North Dakota caucuses – raising fresh doubts about Romney’s ability to corral the votes of conservatives in some of the most Republican states in the country.

Question: Time for Ron Paul and Newt Gingrich to head to the sidelines and let Romney and Santorum fight it out?