The American Israel Public Affairs Committee (AIPAC AY-pak) is a lobbying group that advocates pro-Israel policies to the legislative and executive branches of the United States. One of several pro-Israel lobbying organizations in the United States, AIPAC states that it has over 100,000 members, 17 regional offices, and "a vast pool of donors". Representative Brad Sherman (D-California) has called AIPAC "the single most important organization in promoting the U.S.-Israel alliance". In addition, the organization has been called one of the most powerful lobbying groups in the United States.Until 2021, AIPAC did not raise funds for political candidates itself; its members raised money for candidates through political action committees unaffiliated with AIPAC and by other means. In late 2021, AIPAC formed its own political action committee. It also announced plans for a Super-PAC, which can spend money on behalf of candidates. Its critics have stated it acts as an agent of the Israeli government with a "stranglehold" on the United States Congress with its power and influence. AIPAC has been accused of being strongly allied with the Likud party of Israel, and the Republican Party in the U.S. An AIPAC spokesman has called this a "malicious mischaracterization". The Washington Post described the perceived differences between AIPAC and J Street: "While both groups call themselves bipartisan, AIPAC has won support from an overwhelming majority of Republican Jews, while J Street is presenting itself as an alternative for Democrats who have grown uncomfortable with both Netanyahu's policies and the conservatives' flocking to AIPAC."AIPAC describes itself as a bipartisan organization, and the bills for which it lobbies in Congress are always jointly sponsored by both a Democrat and Republican. AIPAC's supporters claim its bipartisan nature can be seen at its yearly policy conference, which in 2016 included both major parties' nominees: Democrat Hillary Clinton and Republican Donald Trump. High-ranking Democrats, including Vice President (later President) Joe Biden and Senator (later Vice President) Kamala Harris have addressed AIPAC, as well as high-ranking Republicans, including Paul Ryan, then-Speaker of the United States House of Representatives.