The American Israel Public Affairs Committee (AIPAC) has been noticeably quiet about the Trump administration's slowness to denounce the spike in anti-Semitic attacks and bomb threats, its nomination of an ambassador to Israel who described J Street as “worse than kapos,” and its ties to ethno-nationalists like White House chief strategist Stephen K. Bannon and senior adviser Stephen Miller. But AIPAC has done more than just tolerate the U.S. tilt toward extreme and often xenophobic views. Newly released tax filings show that the country's biggest pro-Israel group financially contributed to the Center for Security Policy, the think-tank that played a pivotal role in engineering the Trump administration's efforts to impose a ban on Muslim immigration.