And next weekend , she takes to the hustings , appearing with him and his wife , Michelle , at campaign events in Des Moines ; Cedar Rapids , Iowa ; Manchester , N.H. ; and Columbia , S.C. Her arrival on the trail promises to be a glitzy , high-energy political moment -- perhaps even more anticipated than the unprecedented moment last summer when a former president , Bill Clinton , first stepped out to campaign with his candidate wife , Senator Hillary Clinton .