The influence of the Israel lobby on the 2003 Iraq invasion is not an anti-Semitic trope, it is recorded and acknowledged history. The final decision to invade lay with George W. Bush, and the Israel lobby was far from the only factor in his decision, but their influence was significant and cannot be denied. From the London Review of Books on John Mearsheimer and Stephen Walt's "The Israel Lobby":
Pressure from Israel and the Lobby was not the only factor behind the decision to attack Iraq in March 2003, but it was critical. Some Americans believe that this was a war for oil, but there is hardly any direct evidence to support this claim. Instead, the war was motivated in good part by a desire to make Israel more secure.
According to Philip Zelikow, a former member of the president’s Foreign Intelligence Advisory Board, the executive director of the 9/11 Commission, and now a counsellor to Condoleezza Rice, the ‘real threat’ from Iraq was not a threat to the United States. The ‘unstated threat’ was the ‘threat against Israel’, Zelikow told an audience at the University of Virginia in September 2002. ‘The American government,’ he added, ‘doesn’t want to lean too hard on it rhetorically, because it is not a popular sell.’
https://www.lrb.co.uk/the-paper/v28/n06/john-mearsheimer/the...