Former President George H.W. Bush will endorse John McCain's Republican presidential candidacy Monday in Texas.
The endorsement represents another step in McCain's tightening
grip on the Republican presidential nomination.
Since taking a commanding lead in the delegate count, the
Arizona senator has been working to solidify his support from the
GOP base. Thursday, he picked up the endorsement of one-time chief
rival Mitt Romney.
The endorsement of the former president and patriarch of the Bush family also could help with party stalwarts.
His son, the current President Bush, hasn't yet formally endorsed McCain because former Arkansas Governor Mike Huckabee's
still in the race.
But Bush has strongly signaled his support.