RANGEL'S UGLY AGENDA . . . November 3, 2006 -- John Kerry's insult this week of, sup posedly, the "president, not the troops" overshadowed another story: Top New York Democrat Charlie Rangel's own vitriolic outburst, calling the vice president a "son of a bitch." In an interview with The Post, the aspiring chairman of the House Ways and Means Committee lashed out at Dick Cheney, suggesting the veep seek "rehab" for "whatever personality deficit he may have suffered." Don't Dems have any respect for America's highest political offices? (Maybe they should be called the Gutter-crats.) But President Bush made clear...