umb ent ▁president ▁and ▁nom ine e ▁of ▁the ▁Democratic ▁Party . ▁His ▁running ▁mate ▁was ▁Joe ▁B iden , ▁the ▁inc umb ent ▁vice ▁president . ▁ ▁Mitt ▁Rom ney ▁was ▁the ▁nom ine e ▁of ▁the ▁Republican ▁Party . ▁His ▁running ▁mate ▁was ▁Paul ▁Ryan , ▁a ▁United ▁States ▁Represent ative ▁from ▁Wisconsin . ▁ ▁Vir g il ▁Go ode ▁was ▁the ▁nom ine e ▁of ▁the ▁Constitution ▁Party . ▁His ▁running ▁mate ▁was ▁James ▁C ly mer . ▁ ▁J ill ▁Stein ▁was ▁the ▁nom ine e ▁of ▁the ▁Green ▁Party . ▁Her ▁running ▁mate ▁was ▁Ch eri ▁Hon k ala . ▁ ▁Gary ▁Johnson ▁was ▁the ▁nom ine e ▁of ▁the ▁Libert arian ▁Party . ▁His ▁running ▁mate ▁was ▁James ▁P . ▁Gray . ▁ ▁Gl oria ▁La ▁R iva ▁appeared ▁on ▁the ▁ball ot ▁as ▁a ▁stand - in ▁for ▁P eta ▁L inds ay , ▁the ▁nom ine e ▁of ▁the ▁Party ▁for ▁Social ism ▁and ▁Liber ation , ▁because ▁L inds ay ▁was ▁in el ig ible ▁to ▁appear ▁on ▁the ▁Iowa ▁ball ot ▁due ▁to ▁her ▁young ▁age . ▁Similarly , ▁Stef anie ▁Beach am ▁appeared ▁on ▁the ▁ball ot ▁as ▁a ▁stand - in ▁for ▁the ▁party ' s ▁nom ine e ▁for ▁vice ▁president , ▁Y ari ▁Os orio . ▁ ▁James ▁Harris ▁was ▁the ▁nom ine e ▁of ▁the ▁Social ist ▁Work ers ▁Party . ▁A ly son ▁Kennedy ▁was ▁listed ▁as ▁Harris ' s ▁running ▁mate ▁on ▁the ▁Iowa ▁ball ot