The anti-Semitic U.S. Campaign for Palestinian Rights (USCPR) promotes the “Boycott, Divestment, Sanctions” (BDS) movement against Israel and, in that connection, has reportedly funneled donations to a Palestinian group with ties to terrorist organizations such as Hamas. Nevertheless, U.S. Senator Cory Booker (D-NJ), one of several Democrat senators contemplating a presidential run in 2020, made the obligatory appearance at the radical Left Netroots Nation’s 2018 conference last week where he managed to provide some cover for USCPR. Senator Booker did so when he smilingly appeared in a photo holding up a sign that declared, “From Palestine to Mexico, all the walls have got to go.” The...