New York Times: “The super PAC, Battleground California, says it aims to spend $15 million this year on eight competitive House races, seven with Republican incumbents — in Northern California, Orange County, the Inland Empire east of Los Angeles, the Central Valley and Los Angeles — as well as the seat left open by Representative Katie Porter, a Democrat who is not running for re-election after a failed Senate campaign.”
“It is an ambitious effort, one that seeks to establish a durable progressive machine in California — advised and supported by local activists and community organizations — to lift swing district Democratic candidates through an extensive field operation, including marathon door-knocking campaigns aimed at driving turnout among minority groups.”