The National Republican Campaign Committee isn't continuing their on-air support in Iowa's 1st District, and will go dark in the district this week, according to a Democratic source tracking media buys.
Democratic Rep. Bruce Braley is facing a challenge from Republican Ben Lange in the district, and is considered potentially vulnerable -- though not among the most vulnerable candidates. The NRCC has spent about $400,000 targeting him, but currently has no ad buys scheduled going forward.
In late September, the committee had released an ad hitting Braley on his support for cap and trade. The Democratic Congressional Campaign Committee hasn't been on the air in the district.