washington libertarian party presidential candidate gary johnson green party hopeful jill stein fail quality first plan u.s. presidential debate sept. 26 commission presidential debate say friday commission cite average various candidates achieve select poll confirm republican donald trump democrat hillary clinton meet criteria also say vice presidential run mat two lead candidates two qualify vice presidential debate set oct. 4. first presidential debate hold hofstra university hempstead new york vice presidential debate longwood university farmville virginia use average five national poll clinton score 43 percent trump 40.4 percent johnson 8.4 percent stein 3.2 percent commission say selection debate require least 15 percent support johnson stein constitutionally eligible ballot access enough state theoretically win electoral college majority miss poll threshold stein campaign website say run mate ajamu baraka attend first presidential debate urge supporters join campaign say might ask supporters attempt escort candidates debate action may lead arrest possible definite action take us hofstra risk arrest campaign say organize nonviolent civil resistance train this johnson say statement would say surprise cpd choose exclude first debate not commission private organization create republican democratic party clear purpose take control nationally televise presidential debate voters see johnson say last time third-party candidate allow participate televise debate 1992 ross perot meet requirements run independent u.s. presidential debate rule third party candidates