Washington ? Democratic Sen. John Kerry, who fell 118,601 Ohio votes short of the White House in 2004, said Wednesday he will not run for president in 2008.

“We came close … certainly close enough to be tempted to try again,” the Massachusetts senator said, recalling his defeat. “There are powerful reasons to want to continue that fight now. But I have concluded this isn’t the time for me to mount a presidential campaign.”

His decision leaves a field of nine Democrats running or signaling their intention to do so, including Sens. Hillary Rodham Clinton of New York and Barack Obama of Illinois, and John Edwards, Kerry’s vice presidential running mate.

The Republican field is similarly crowded, with President Bush constitutionally barred from seeking a third term in office.

Officials said Kerry would seek a new six-year term in the Senate in 2008. The fourth-term lawmaker and decorated Vietnam War veteran said he would devote his time and energy to ending the conflict in Iraq.

He said he wanted Bush’s successor to enter office with the United States having “a reasonable prospect of success” in Iraq.

“I don’t want the next president to find that they have inherited a nation still divided and a policy destined to end as Vietnam did – in a bitter and sad legacy,” he said.

Kerry, 64, made the announcement on the Senate floor at the end of a lengthy speech on Iraq. He briefly choked up.