DEROY MURDOCK: With Anti-Semitism on the March, Jewish Republicans Welcome Senator Ron Johnson to New York.

From the horrific expansion of the Islamic State to an impending U.S.-Iranian deal that will do little to quash the ayatollahs’ atomic ambitions, Jews the world over have mounting reasons to worry. Obama’s ongoing, kindergarten-like tantrum over the re-election of Israeli prime minister Benjamin Netanyahu is hardly reassuring. All of this may explain why American Jews increasingly are leaning toward the Republican party and its policies that unapologetically defend Israel and hammer radical Islamic terrorism. In contrast, Obama gives the Jewish state the back of his hand and refers vaguely to “violent extremists” rather than specifically to the Muslim zealots who gleefully kill Jews, Christians, and virtually anything that moves and is not militantly Islamic. (As demolished antiquities from Afghanistan to Mosul can attest, these fanatics even destroy inanimate objects.) A recent Gallup poll found that Jewish support for the Democratic party has fallen from 71 percent in 2008 to 61 percent in January. Pew Research indicates that 68 percent of Jews surveyed backed the Democrats in 2012, compared to 61 percent today.

Honestly, given Obama’s record, it’s amazing that the Democrats are in double-digit territory.