WASHINGTON -- Sen. John Kerry of Massachusetts, the Democrats' losing presidential candidate in 2004, does not intend to run again in 2008, a Democratic official said today.

This official said Kerry intends to seek a new six-year term in the Senate.

Kerry plans to disclose his political plans in remarks on the Senate floor later in the day, according to this official, who spoke on condition of anonymity to avoid pre-empting a formal announcement.

Kerry, 64, who lost the White House when Ohio voted for President Bush by 118,601 votes on election night in November 2004, was attending a Senate Foreign Relations Committee meeting and unavailable for comment.

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