You're familiar, I'm sure, with the liberal argument that the Tea Party is not a real grassroots phenomenon, but is instead the plaything of plutocrats.
Then there's the Democrats' self-image of being funded by small money while the GOP is all big money.
People who do actual reporting — in this case, the Center for Public Integrity — come to more nuanced conclusions.
CPI writes: "[T]en super PACs and hybrid super PACs that raised at least $500,000 last year collected more than half their money from donors that each gave just $200 or less, according to a Center for Public Integrity analysis of Federal Election Commission records."
Guess what? Seven of those ten are groups dedicated to dragging the GOP rightward.