Typically, it is a break-in, carjacking, robbery or murder close to home that clinches a family's long mulled-over decision to leave.

ECONOMIST: White flight from South Africa

He has since softened his stance a bit, but he has also vowed to stay in the race until Mr Romney clinches a majority.

ECONOMIST: Newt Gingrich??s campaign

In a cable television appearance Monday, Rep. Ron Paul, R-Texas, said he will not step aside even if Romney clinches the GOP nomination by garnering the required 1, 144 delegates to the GOP convention.

CNN: Romney backs extending lowered student loan rates