Democrats are launching a new super PAC called Change Now, supported by a coalition of Democratic groups, including the Service Employees International Union and the League of Conservation Voters (LCV) Victory Fund. It will spend more than $5 million, including six-figure TV ad buys, starting today through Nov. 6.

Why it matters: The group is targeting some of the most vulnerable Republicans, like Reps. Rod Blum, Steve Chabot and Mike Coffman, and it plans to expand into other districts.