Over 150 prominent activists, authors, and academics have launched a petition  with a statement that begins:
"We the undersigned share with nearly two-thirds of our fellow Americans the conviction that our wars in Afghanistan and Iraq should be ended and that overall military spending should be dramatically reduced. This has been our position for years and will continue to be, and we take it seriously. We vow not to support President Barack Obama for renomination for another term in office, and to actively seek to impede his war policies unless and until he reverses them."
Among the signers are:
Elliott Adams, president, Veterans For Peace
Medea Benjamin, cofounder, Code Pink*
Daniel Ellsberg, former State and Defense Dept. official, whistleblower of Pentagon Papers
Lisa Fithian, convenor, United for Peace and Justice
Chris Hedges, author, Death of the Liberal Class
Ethan McCord, IVAW, VFP, former army specialist from "collateral murder" video
Marcy Winograd, former Democratic congressional candidate
Please join us in taking this stand!
You can read the full statement, see the list of signers, and add your name here: http://warisacrime.org/primary