27% identify immigration as the most important U.S. problemSurpasses record 23% naming the issue in JuneA small number of issues have ever eclipsed 27% mentions since 2001WASHINGTON, D.C. -- After hitting a new high last month, mentions of immigration as the most important problem facing the U.S. increased further to 27% in July. Republicans have typically been more likely than Democrats and independents to name immigration as the most important problem, and that is still the case. In March, when a 2019-low 16% of Americans identified immigration as the most important problem, 31% of Republicans, 14% of independents and 6% of Democrats did. Problem, July 2019What do you think is the most important problem facing this country today? The historical low in mentions of economic issues as the most important problem is 12%, registered in February and in September 2018.