It's been a rough stretch for President Bush. The story in Iraq turned sour in key cities like Fallujah and Najaf. Then the Abu Ghraib prison scandal hit. The economy has turned up, but nobody seems to notice. In a few public events -- such as the Tim Russert interview on "Meet the Press" -- the president has sometimes appeared halting and defensive. But not so at the White House this past Thursday. At a press briefing I attended in the Roosevelt Room, George W. Bush showed a side of himself we haven't seen in a while. He was tough,...