The nonpartisan organization's findings from a survey in February had almost similar results: 62 percent oppose the wall, while 35 are in favor of it. The poll also found that only 29 percent think a wall would lead to a “major reduction” in illegal immigration. An additional 25 percent think it would lead to a “minor reduction,” while 43 percent don't think it would have much effect. Another key finding: A huge majority of Americans, 70 percent, think the United States would ultimately foot the bill, even though Trump had insisted that Mexico would pay “for the badly needed” wall “at a later date.” In the survey, 16 percent said they think Mexico will pay for the wall, although Mexico's president has said his country won't.