There is nothing anti-Semitic about the comments mentioned. Asking questions of the influence Israeli money has over US politics is a valuable exercise. Levying charges of anti-Semitism against anyone that raises the issue is little more than a tool to stifle debate over Israeli policy.
David Steiner, the former president of the American Israel Public Affairs Committee (AIPAC), was caught on tape bragging about his role in influencing George H.W. Bush to increase aid to Israel in 1992. He also bragged about securing key jobs for pro-Israel politicians in the Clinton cabinet. 
In another incident, in 1984 Senator Charles Perry refused to sign onto an AIPAC-sponsored letter and called Yasser Arafat, the leader of the Palestinian Liberation Organisation, a "moderate". AIPAC subsequently raised more than a million dollars and gave it to his opponent in the next election in an attempt to get him out of office.
Questioning the influence of Zionist money in politics and the allegiance of politicians is not simply regurgitating anti-Semitic tropes; it is a necessary exercise given past evidence.