[citation needed] Loewenstein is a member of the USA board of the Israeli Committee Against House Demolitions and founder of the Madison-Rafah Sister City Project.
[4] She helped organize protests against the 2003 US-led invasion of Iraq,[5] and she occasionally makes arrangements for political activists or journalists to speak at American universities.
Her description of the aftermath of the Israeli rocket attack that killed Salah Shehade criticized Israel for its collateral slaying of 14 civilians.
[11] She has written that Israel has little interest in peace owing to its military and strategic advantage over the Palestinians, and is characterizes Israeli policy as "racist".
This prompted a vitriolic response from conservative activist David Horowitz, who called her an "ignoramus and a moral defective", a "self-hating Jew" and a "capo."