Senate Foreign Relations Committee Chairman Joe Biden took to the airwaves this week to "help" the rookie Barack Obama out of a foreign-policy jam. Oh sure, admitted Mr. Biden, the presumptive Democratic nominee had given the "wrong" answer when he said he'd meet unconditionally with leaders of rogue states. But on the upside, the guy "has learned a hell of a lot."

Somewhere Mr. Obama was muttering an expletive. But give Mr. Biden marks for honesty. As Mr. Obama finishes a week of brutal questioning over his foreign-policy...