03/28/2008 02:45 am ET | Updated May 25, 2011

George H.W. Bush To Endorse McCain

Former president George H.W. Bush will endorse Sen. John McCain (R-Ariz.) in Houston on Monday during a media availability at 9:30 a.m. Texas time, Republican sources say.

President Bush will be in Africa at the time. He told "Fox News Sunday" last weekend that he would help make the case for McCain's conservative credentials as soon as there was an official nominee.

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