Obama needs a warrior to bring the smackdown

With economic distress so high, and with John McCain claiming national security as his trump card, Democrats may again be tempted to play down foreign affairs so they can turn the election into a fight over domestic questions about which McCain has had little to say.

Evading national security, says Sen. Joe Biden (D-Del.), would be a disastrous mistake. "The only way we lose this election is not to engage this issue head-on," Biden said during an interview in his Capitol office the day after Obama clinched the nomination. Democrats, Biden said, should be "proactive" and not "play defense on foreign affairs" because "the case against McCain and Bush on national security is so overwhelming. . . . It should be an essential part of the case for the Democratic nominee."

He should be at the top of any list of vice presidential picks for Obama. Why Biden? Few Democrats know more about foreign policy, and few would so relish the fight against McCain on international affairs. Few are better placed to argue that withdrawal from Iraq will strengthen rather than weaken the United States.

The worst thing in a running mate is the fear of muddying his or her image in political combat. Biden would be a happy warrior.

He was born in Scranton, Pa., an essential state for Democrats, and has been a regular in the Philadelphia media market. Pennsylvania Gov. Ed Rendell, himself a plausible No. 2, has called Biden "a perfect fit." The senator has been through two of his own presidential campaigns, in which he experienced what an acquaintance of his called the "white-hot heat" of scrutiny.

Biden is Catholic and hails from a blue-collar world, two constituencies with which Obama needs help. The chairman of the Senate Foreign Relations Committee and former chairman of the Judiciary Committee, Biden speaks with real learning on international affairs and the judiciary -- the next vacancies on the Supreme Court should be a big issue in this campaign -- while never sounding like an elitist.

But the central reason to pick Biden is the message the choice would send about Obama's readiness to contest national security issues and his understanding that fixing American foreign policy must be one of the next president's highest priorities.

Biden has been critical of Bush's approach to Iraq and the world for the right reasons, and from the beginning. Even before the war began, Biden was warning of the costs of a lengthy occupation and predicting a decade-long intervention.

To restore its strength and influence, the United States needs to return to the realistic internationalism of FDR, Truman and, yes, the first President Bush. Whether or not Obama picks Biden, he should listen to what Biden is saying. Obama can't sidestep the foreign policy debate. He has to win it.