HELENA, Mont. (AP) — A campaign finance watchdog and a gun-safety advocacy group on Monday asked the Federal Election Commission to investigate allegations of illegal campaign coordination between Republican U.S. Senate candidate Matt Rosendale of Montana and the National Rifle Association. The Campaign Legal Center and the group Giffords say in their FEC complaint that Rosendale knew about and agreed to the NRA lobbying arm's plans to buy $404,496 in ads to criticize the last three Supreme Court confirmation votes cast by Rosendale's opponent, incumbent U.S.