Democrats Gain Momentum in Key House Races as Iowa Seats Become Toss-Ups

Cook Political Report shifts five House races towards Democrats, highlighting vulnerabilities in Republican-held districts.

Iowa's 1st and 3rd Congressional Districts, held by Republicans, have been reclassified from 'lean Republican' to 'toss-up' by the Cook Political Report.
Rep. Mariannette Miller-Meeks is seen as a weak incumbent, while Vice President Kamala Harris shows strong polling in Rep. Zach Nunn's district.
Democratic National Committee Chairman Jaime Harrison emphasizes the party's offensive strategy in traditionally Republican states.
The races of Democratic Reps. Frank Mrvan and Eric Sorensen have shifted to more secure 'likely Democrat' status.
Republican Rep. Ryan Zinke faces increased competition in Montana's 1st District, moving from 'likely Republican' to 'lean Republican' due to past ethics investigations.