oklahoma. headlining votes in six states today. six. all eyes on the mississippi senate race. tea party challenger chris mcdaniel had a tight runoff with chad cochran for the nomination. seven candidates are running to replace senator tom crow burn. james lankford leading over t. w. shannon. the race could be headed to an august runoff. other states holding primaries, colorado, utah and new york. charles rangel faces a tough reelection battle. secretary of state john kerry in iraq right now for a second day seeking support to push reforms in iraq s shiite led government. the oil refinery now in the hands of insurgents.