More than 23,000 liberal activists have pledged to withhold a combined $11 million from Democratic candidates and campaign groups in retribution for Sen. Charles Schumer’s (D-N.Y.) decision to oppose the nuclear deal with Iran....

Monday’s totals are evidence of outrage among the Democratic Party’s base, MoveOn said, which should compel Democratic lawmakers to fall in line and support the agreement.

“While Sen. Schumer’s decision is not unexpected, it is outrageous and unacceptable that any Democrat — especially one who wants to lead his caucus — would side with Republican partisans, war hawks and neoconservative ideologues who are trying to scrap this agreement and put us on the path to war,” MoveOn.org political action head Ilya Sheyman said in a statement.

“MoveOn members know that risking American lives in wars of choice isn’t leadership,” Sheyman added. “And what they are indicating with this donor strike is that they are ready to punish any Democratic politician who puts America on the path to a war of choice with Iran.”