From http://educationopportunitynetwork.org/how-long-can-big-money-keep-democrats-in-the-charter-school-camp/:

For decades, the petroleum industry has stuffed the coffers of candidates in both parties to ensure legislation continues to favor oil consumption, stall alternative energy sources, and ensure lax environmental regulations.

The other source of corporate cash in Democratic politics is much newer: charter schools. …

…the combo of big oil and education reform mustered at least $24 million in donations to back candidates who opposed “Gov. Jerry Brown’s effort to halve motorists’ use of fossil fuels by 2030” and who supported “expanding charter schools.”

Meyerson spotlights a number of races around the state where candidates who benefitted from the big oil-education reform combo defeated more progressive Democrats.

Across the Golden State, reports LA School Report, “Education reformers spent big ahead of California’s primary … The millions paid off with all of the candidates they supported advancing to November’s general election.”

A similar influx of corporate cash is infecting Democratic Party politics in Washington State, with the money coming from astroturf groups such as League of Education Voters, funded by Microsoft, Boeing and other rich people enjoying tax breaks.