Republican solidarity appears to be at stake as more prominent Republicans have thrown their support to Democrat Senator Barack Obama in the campaign.

Former Senator Charles Mathias of Maryland is the latest to lend his support to the Democratic nominee.

He joins former Secretary of State Colin Powell, former Massachusetts Governor William Weld, and former Bush press secretary Scott McClellan.

The selection of Sarah Palin is one factor turning off some Republicans.

Former Senator Mathias told The Washington Post:

“For me, the decision is based on the long-range needs of our country and which of these two candidates I feel is better suited to recharge America’s economic health, restore its prestige abroad and inspire anew all people who cherish freedom and equality.

“For me, that person is Barack Obama.”

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