State Assemblyman Adam Clayton Powell 4th, Democrat and son of the trailblazing Harlem politician Adam Clayton Powell Jr., was arrested for drunk driving on the upper West Side at 2:30 a.m. this morning. According to the Daily News, an unidentified woman passed out in the back of the car was so intoxicated she had to be taken to a local hospital. Powell failed a breath test at the scene by a small margin and, while......