One candidate is unabashedly blunt, willing to embrace progressive positions, doing little to build rapport with party leaders and dominating rooms with a 6-foot-8-inch frame.... Fetterman suffered a stroke just days before winning his party's nomination for the Senate race last month and has not yet returned to the campaign trail, or given much indication when he will do so.... Campaign aides say they expect the men will appear together at bigger events, such as rallies, regional campaign off