em ont , ▁Illinois . ▁Another ▁ 1 1 , 0 0 0 ▁hotel ▁rooms ▁will ▁house ▁volunte ers , ▁members ▁of ▁the ▁media , ▁don ors , ▁and ▁other ▁at ten de es . ▁ ▁Mil w au kee ▁had ▁been ▁planning ▁an ▁extension ▁of ▁its ▁street car ▁line ▁to ▁be ▁completed ▁in ▁advance ▁of ▁the ▁convention . ▁However , ▁these ▁plans ▁fal tered , ▁and ▁the ▁expansion ▁will ▁not ▁be ▁completed ▁in ▁time ▁for ▁the ▁convention . ▁ ▁Organ izers ▁are ▁also ▁rec ruit ing ▁ 1 5 , 0 0 0 ▁volunte ers . ▁ ▁Del ay ▁Due ▁to ▁the ▁ 2 0 1 9 - 2 0 ▁coron av irus ▁pan demic , ▁the ▁convention ▁has ▁been ▁delayed ▁to ▁August ▁ 1 7 – 2 0 . ▁ ▁Format ▁ ▁Ro le ▁of ▁super de leg ates ▁Super de leg ates ▁are ▁deleg ates ▁to ▁the ▁convention ▁who ▁are ▁automatically ▁chosen ▁by ▁the ▁party , ▁rather ▁than ▁by ▁the ▁results ▁of ▁prim aries ▁and ▁c auc uses . ▁While ▁techn ically ▁un ple d ged , ▁many ▁of ▁them ▁have ▁inform ally ▁p led ged ▁themselves ▁to ▁a ▁pre design ated ▁front - runner ▁in ▁previous ▁elections . ▁During ▁the ▁ 2 0 1 6 ▁Democratic ▁prim aries , ▁most ▁of ▁these ▁fav ored ▁Hill ary ▁Cl inton ▁over ▁Bern ie ▁Sand ers . ▁The ▁super delegate ▁system ▁is ▁controvers ial ▁among ▁Democr ats , ▁and ▁supp or ters ▁of ▁both ▁Cl inton ▁and ▁Sand ers ▁have ▁called ▁for