In a move that surprised his most loyal supporters and former staff, Mitt Romney told several donors Friday he’s seriously considering a third run for the White House — a dramatic shift for the last Republican presidential nominee after months of insisting his career in politics is over.

A Democratic super PAC wanted to run a 30-second ad during a Friday evening newscast on New Hampshire’s one network station — and was even willing to shell out the $10,000 that the station demanded.