Complex sentence: Former President George H. W. Bush came to campaign on Jenkins' behalf, along with Senators John S. McCain of Arizona, Orrin G. Hatch of Utah, Majority Leader Trent Lott of Mississippi, and Connie Mack, III, of Florida.
Split into simpler sentences: Former President George H. W. Bush came to campaign on Jenkins' behalf. Other party figures supporting Jenkins were Senators John S. McCain of Arizona, Orrin G. Hatch of Utah, Majority Leader Trent Lott of Mississippi, and Connie Mack, III, of Florida.