Romney, who had monster popularity ratings in Utah at the time, emerged on stage at the 2010 convention to give his ringing endorsement of then-Sen. Bob Bennett who was facing challengers for the nomination.
“Some may disagree with a handful of his votes or simply want a new face,” Romney declared. “But with the sweep and arrogance of the liberal onslaught today in Washington, we need Bob Bennett’s skill and intellect and loyalty and power.”
The speech didn’t save Bennett. The three-term incumbent lost that convention fight and tea-party darling Mike Lee went on to win the seat.