new york donald trump ride top republican ticket promise big beautiful powerful border wall mexico stop flow undocumented immigrants along border however americans likely call wall waste money accord reuters/ipsos opinion poll result show new york businessman may expect tough stance immigration fire support nationally seem fall short state heavily affect illegal immigration face surprise challenge democratic rival hillary clinton ask wall would effective barrier waste money 47 percent arizona residents pick waste money 34 percent pick effective barrier rest pick neither accord poll among republicans 21 percent pick waste money 57 percent pick effective barrier arizonans also believe realistic expect mexico pay wall something trump vow would happen elect president nov. accord poll result line closely nationwide opinions trump immigration policy 49 percent american adults say wall would waste money 31 percent say would effective barrier big powerful rich nation leave door open say tony estrada santa cruz county sheriff serve law enforcement border county 49 years need realistic humane process donald trump cater people fear poll show arizona state vote democrat presidential election since 1952 become competitive real clear politics average poll show clinton ahead 1.3 percentage point reuters/ipsos poll show trump ahead point clinton campaign say last week would spend million campaign arizona election arizona border mexico 370 miles long cover isolate desert terrain draw millions seek cross illegally state number undocumented immigrants fall 35 percent 2007 peak 325,000 accord pew research center arizona crack population nationwide number drop percent high 2007 11.1 million undocumented immigrants wendy cornacchio 45 year-old trump supporter phoenix say believe illegal immigration still problem would rather see technologies like drone surveillance trump wall address think necessarily build wall work concept close border agree say florida another closely-fought state see large level illegal immigration though sea rather land 41 percent voters say believe trump wall would waste money 36 percent think would effective barrier progressive activist group florida arizona use trump hard line immigration mobilize latinos clinton advocate path citizenship undocumented immigrants mi familia vota example say register 15,000 people arizona year reuters/ipsos poll conduct online english spanish arizona florida arizona poll run oct. oct. 19 gather responses 2,600 people florida poll run oct. oct. 12 gather responses 2,610 people poll credibility interval measure accuracy percentage point total group percentage point likely voters waste money trump 's border wall fall flat arizona reuters/ipsos poll