Politico’s Mike Allen quotes a “senior Democratic L.A. business figure” who is a longtime Obama supporter.

“The Senate bill passed the Judiciary Committee on an extraordinary bi-partisan 19–0 vote, and now the Administration is stopping it in its tracks, bowing to pressure from those who profit from internet theft … There’s a cynical calculation in the WH that Hollywood won’t stop funding POTUS, but the tech community would.  This is a key test + moment for all creators of content to stand up to Obama and hold him accountable. He promised Hollywood he would protect their intellectual property rights and he swore to uphold the laws of the U.S., including copyright law.”

Here’s a reason for the cynicism: Save for the corporate and lobbying level, show biz donors traditionally don’t tie their giving to concerns of the industry. For years, a host of other concerns — foreign policy, education, gay rights, abortion, or maybe even simple desire to mingle among the D.C. powerful — have trumped copyright, to the point where it is almost a source of pride among some fund-raisers that politicos trek to L.A. without fear of being pressed on issues of self-interest. House Minority Leader Nancy Pelosi raised money in late September at the offices of J.J. Abrams’ Bad Robot Prods.; in November she came out against the legislation.

Silicon Valley lobbyists have complained that their industry acts the same way, but in the fight over this anti-piracy legislation, it’s been much easier for them to sound the alarm to the netroots than it has for Hollywood to marshal its rank and file to press lawmakers that this is an urgent jobs issue. What’s more, opponents have claimed that they are not against intellectual property protection, just this piece of legislation. An alternate bill is circulating in the House and Senate, albeit one Hollywood finds wanting.

Corporate chieftans like Rupert Murdoch already are livid at the Obama administration, and other studio officials will soon get their chance to confront the administration on their position: Vice President Joseph Biden is scheduled to raise money in Los Angeles on Friday.