A Democratic hybrid PAC called Red to Blue California, which focuses on flipping House seats in California, is launching a six-figure ad campaign in 10 districts with the goal of reaching 1 million voters before Election Day.

Why it matters: Democrats' path to taking back the House will be a lot easier if they win California. All 10 of these targeted districts are either open seats or held by a Republican, and they only need 23 to win the House.

The group is launching a 10-second digital ad and direct mail — that says "Vote for Democrats to stop the reckless, hate-fueled Trump agenda" — in the following districts:

• CA-04, CA-10, CA-21, CA-22, CA-25, CA-39, CA-45, CA-48, CA-49, CA-50

They're trying to flip these seats from red to blue by specifically focusing on low-frequency voters, who typically don't vote in midterm elections but who Democrats are depending on to win the 2018 election.