washington u.s. senator jeff flake say tuesday republican nominee donald trump able win presidential election win maintain position hold include harsh stance immigration interview flake say still hop trump change enough republican senator arizona able vote candidate nov. election flake say slim hope say things stand trump even difficulty clinch state arizona nominee call build wall border mexico develop serious immigration policy arizona last vote democratic presidential candidate two decades ago give position take continue maintain position continue hold statements make think win presidency think unwilling change flake say trump big difference win primary get 14 million vote get 65 million vote go need win presidency two number encounter number swing voters independents simply cotton kind message deliver reality flake say flake 53 long one trump vocal critics capitol hill trump inflammatory remark immigrants particular problem flake whose southwestern border state large hispanic population flake among eight senators propose comprehensive immigration reform 2013. flake memorably tell reporter last month would attend republican convention nominate trump mow lawn flake tell vanity fair magazine july think much worry trump presidency change also insist vote democratic candidate former secretary state hillary clinton flake member house representatives 12 years elect senate 2012 say arizonans realistic pragmatic immigration trump right flake say arizona almost toss-up presidential election flake run re-election senate 2018. fellow arizona senator john mccain re-election year face primary general election challengers mccain say back trump flake say respect senator susan collins maine another republican say opinion article publish monday definitely would vote trump flake say prepare follow collins example set stampede trump repudiations senator flake trump ca n't win ca n't change