If money determines political and public views as Carter insists "Jewish money" does, Carter's views on the Middle East must be deemed to have been influenced by the vast sums of Arab money he has received. If he who pays the piper calls the tune, then Carter's off-key tunes have been called by his Saudi Arabian paymasters. It pains me to say this, but I now believe that there is no person in American public life today who has a lower ratio of real to apparent integrity than Jimmy Carter. The public perception of his integrity is extraordinarily high. His real integrity, it now turns out, is extraordinarily low. He is no better than so many former American politicians who, after leaving public life, sell themselves to the highest bidder and become lobbyists for despicable causes. That is now Jimmy Carter's sad legacy.
It's very detailed -- The Real Jimmy Carter - Alan M. Dershowitz