Likely voters in November want a Democrat as their U.S. House representative over a Republican in three of the state’s congressional districts, while Republicans appear to have solidified their hold on the 4th District, according to the June Des Moines Register/Mediacom Iowa Poll.

Statewide, likely voters prefer a Democrat over a Republican 47% to 42% — a reversal from March, when an Iowa Poll showed 49% support for Republicans and 42% for Democrats. Nearly all respondents who made a party choice are firm with their decisions, the new poll shows. Only 2% of either side identify as only “leaning” toward one party or the other…

Democrats hold a double-digit advantage in two districts: 18 percentage points in the 2nd District, which includes Iowa City and has been represented by a Democrat since 2006, and 16 percentage points in the 3rd District, which includes the Des Moines metro and flipped to Democratic representation in 2018. In each, more than half of the Iowa Poll respondents prefer a Democrat over a Republican.