These are the latest numbers for six important "swing states" in the 2016 election. This is with Bernie Sanders vainly trying to keep his campaign alive. I expect the Clinton numbers will rise after the national conventions, and Democrats unite (understanding that this race is only between Hillary Clinton and Donald Trump).
Public Policy Polling interviewed 691 registered voters in Arizona, 897 in Iowa, 578 in New Hampshire, 708 in Ohio, 980 in Pennsylvania, and 843 in Wisconsin on June 22nd and 23rd. The margins of error for the surveys are +/-3.7%, +/-3.3%, +/-4.1%, +/-3.7%, +/-3.1%, and +/-3.4% respectively.