WEST HOLLYWOOD (CBS) — GOP candidate Newt Gingrich’s campaign bus made an unexpected stop Wednesday night when it got a flat tire on Sunset Boulevard.

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Gingrich’s campaign hasn’t said why the bus was in West Hollywood, or whether he was on the bus at the time.

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Gingrich and his wife, Callista, will visit Little Oaks School in Thousand Oaks Thursday morning.

The couple will then attend a Republican Jewish luncheon in Beverly Hills.

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So far, Gingrich has only won the South Carolina primary, while Mitt Romney and Rick Santorum have each won four states.