Here's the top of J-Street's speakers' list for its upcoming conference:
And according to the Jerusalem Post's Lahav Harkov, James Baker is the keynote speaker.
Baker is of course infamous for reportedly saying in private conversation, while George HW Bush's secretary of state, "F**k the Jews, they didn't vote for us anyway."
But his antipathy towards Israel is well documented. He wanted the US to punish Israel for destroying Iraq's Osirak nuclear reactor. He hated Netanyahu as early as 1990, barring him from entering the State Department's building. And last but not least, he co-wrote the Iraq Study Group's 2006 paper that recommended (among other things) that the US tilt its foreign policy away from Israel and towards Syria and Iran, advice that President Obama seems to have taken to heart.
So who says that J-Street isn't bipartisan? It loves anti-Israel, antisemitic Republicans too!
UPDATE: right on cue, J-street's founder is crowing about how bipartisan he is:
Very excited to have one of pre-eminent Republican statesmen of our time. Bipartisanship, as you know, is essential @JeffreyGoldberg
— Jeremy Ben-Ami (@JeremyBenAmi) February 13, 2015