The White House is negotiating with conservative Michigan Rep. Bart Stupak in hopes of getting him to ease off on abortion objections that could kill health care reform.

So far, he hasn’t, so Sen. Kirsten Gillibrand is mounting an online petition drive against him, and taking advantage of that opportunity to raise a little cash.

“I just can’t believe it - Representative Bart Stupak is back at it,” Gillibrand says in an e-mail appeal to supporters. “He and a dozen or so of his colleagues are trying to block health care reform by reinserting a dangerous, anti-choice provision into President Obama’s health care bill. I’m sure you were just as shocked as I was when you heard the news.”

Stupak and other conservative Democratic abortion opponents nearly deep-sixed the House health care bill last year until they got restrictive anti-abortion language added. The Senate version wound up with a less-restrictive clause that was nevertheless unsavory for abortion rights advocates.

“Representative Stupak’s amendment was resoundingly defeated in the Senate before because it discriminates against women and poses a dangerous health risk to women and girls from every state,” Gillibrand says.

The e-mail — with big red “contribute” button — asks people to sign the petition, arguing: “After months of Republican obstructionism, we are finally about to pass real health care reform that will provide coverage to millions of Americans. Yet, a handful of politicians with extremist points of view are holding the bill hostage.”

In case you missed it, Stupak, a Democrat, would be among the “extremists,” not the Republican obstructionists.