Iowa Republican Sen. Rick Bertrand has called on Senate Majority Leader Bill Dix of Shell Rock to resign following the conclusion of a sexual harassment lawsuit filed by a former legislative aide. Bertrand said Wednesday that Dix should resign after a jury awarded $2.2 million to Kirsten Anderson, a former Iowa Senate Republican caucus aide. The jury determined she was fired in 2013 after she reported rampant sexual harassment in the caucus office. A spokesman for Dix says the senator has no comment.