Today on the presidential campaign trail

Longtime Sen. Robert C. Byrd of West Virginia endorses Obama ... McCain attacks Obama for saying Iran poses lesser threat than Soviets ... Not so fast, Clinton says to Obama -there's no nominee yet ... Poll: Clinton has wide lead in Kentucky; Obama ahead slightly in closer Oregon race ... Obama, angered by Tenn. GOP's handling of his wife's remarks, says 'Lay off my wife'

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Sen. Robert C. Byrd endorses Obama

WASHINGTON (AP) -Sen. Robert C. Byrd, a former member of the Ku Klux Klan and a one-time opponent of civil rights legislation, endorsed Barack Obama for the Democratic presidential nomination on Monday.

Obama is vying to be the nation's first black president.

Byrd's support comes almost a week after the Illinois senator's 41-point loss to Hillary Rodham Clinton in the longtime lawmaker's home state of West Virginia.

Byrd said he had no intention of getting involved while his state was in the midst of a primary. "But the stakes this November could not be higher," he said in a written statement.

Byrd said Obama has the qualities to end the Iraq war, which he has strongly opposed.

"I believe that Barack Obama is a shining young statesman, who possesses the personal temperament and courage necessary to extricate our country from this costly misadventure in Iraq, and to lead our nation at this challenging time in history," Byrd said.