Always worth reading again: Tentacles of Rage: The Republican propaganda mill, a brief history
This is a 2004 story looking at the history of how the right became so prominent in American politics in recent decades, roughtly from Gioldwater to George W. Bush. They had enormous funding – in the hundreds of millions per year – in those decades. Huge checks went to anyone who would promote right-wing corporate values. For example, mid-1970s:
… the terms of the offer an annual salary of $200,000, to be paid for life even in the event of my resignation or early retirement—spoke to the seriousness of the rightist intent to corner and control the national market in ideas.
In the 1970s $200K a year promised for life wasn’t bad at all. And supplemented with speaking fees, book advances, the occasional $10K check for an article denying global warming, etc…