What’s politically toxic in Campaign 2006? On the CBS Evening News Friday night, Katie Couric covered the U.S. Senate race in New Jersey, and the danger was apparently a Republican standing anywhere near Team Bush. Couric pressed Republican candidate Tom Kean Jr. about President Bush: "Would you like him to come?" The second time she asked, she giggled. She weirdly compared the Kean family to the fictional mob family in The Sopranos. (Would she ever do that to the Kennedys?) Couric ever-so-barely revealed "scandal has wracked the Democratic Party here," but gave no specifics. Newly appointed Sen. Bob Menendez is...