Days after ending his run for the GOP presidential nomination, Newt Gingrich said Sunday he would not accept the Republican vice presidential slot if offered, and said Romney should focus on picking a young running mate.

“I can’t imagine it,” said Gingrich on CNN’s State of the Union Sunday of the possibility of joining Romney on the GOP ticket.

The Romney campaign would be better served by paring the former Massachusetts governor with one of the younger, rising stars in the party, Gingrich said.

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