George H.W. Bush to endorse Mitt Romney for president

George H.W. Bush will join his son Jeb in endorsing former Massachusetts governor Mitt Romney as the GOP nominee for president. George H.W. Bush was the 41st US President.

In this file photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney meets with former President George H.W. Bush in Houston. The former president plans to endorse Mitt Romney, further urging the Republican Party to coalesce around the former Massachusetts governor's presidential campaign.

Pat Sullivan/AP

March 28, 2012

Former President George H.W. Bush plans to endorse Mitt Romney at an event Thursday in Houston.

Romney spokeswoman Gail Gitcho says the two will appear together and speak to reporters.

Formal backing from the 41st president is another sign that the Republican Party is uniting behind Romney as pressure builds on challengers Rick Santorum and Newt Gingrich to leave the race.

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The elder Bush has offered encouraging words to Romney throughout the primary season but had withheld a formal endorsement. Former first lady Barbara Bush has formally backed Romney. She recorded automated telephone calls for him during the primary in Ohio.

Their son, former Florida Gov. Jeb Bush, endorsed Romney last week.