GREELEY, Colo. - Republican U.S. Rep. Marilyn Musgrave's re-election campaign was already heated, and it just got smelly as well: Her staff accused a Democratic activist Thursday of leaving an envelope full of dog feces at Musgrave's Greeley office. Musgrave spokesman Shaun Kenney said someone stuffed the envelope through the mail slot in the door on May 31 and then sped away in a car. Kenney said most of the preprinted return address was blacked out, but staffers used the nine-digit ZIP code to trace it to Kathleen Ensz, a Weld County Democratic volunteer. Ensz told The Associated Press she...