Davenport, Iowa – Bill Clinton called his wife “the best change agent I’ve ever known,” as he introduced her to a crowd of more than 1,500 people and tried to secure their support in Monday’s caucuses.

Hillary Clinton thanked her husband for the 10-minute “warm up act” and delivered an energetic and lengthy version of her stump speech.

Politics has become a family affair for the Clintons. On Saturday, Mrs. Clinton will be joined by her daughter, Chelsea, before the family convenes for the first joint rally of her 2016 campaign in Cedar Rapids.