* Tina Sfondeles with the scoop…

A new poll commissioned by Democrat Sean Casten’s congressional campaign finds U.S. Rep. Peter Roskam, R-Ill., under water for the first time in a hotly contested race.

The poll, conducted by the Garin Hart Yang Research Group on behalf of Casten’s campaign, finds Casten ahead 47 to 44 percent, with 9 percent undecided. The poll was taken Sept. 8-10 of 402 likely voters in Illinois’ 6th Congressional District, which covers suburbs in Cook, Lake, Kane, McHenry and Dupage counties. The margin of error is plus or minus 4.9 percentage points.

Casten’s campaign framed the poll as proof that Roskam’s spending in the race isn’t working. The campaign released a summary of its findings but not all the data collected. The poll also found 39 percent of voters had an unfavorable view of Roskam, with 33 percent of voters saying they had a favorable view. […]

The poll also asked voters about Trump. Poll takers said that “nearly three in five voters,” or 58 percent, viewed Trump negatively in the district, which they claim is the worst ratings recorded for Trump since they began polling in the district.

More deets at the link.