Findley served 11 terms in Congress, but lost to Dick Durbin, in his bid for reelection in 1982. He was known in Congress as an advocate for the farmers of his district and as a strong proponent of the Palestinians and of opening up communication with the Palestine Liberation Organization since they were the strongest and most organized representatives of Palestinian people at the time. Findley famously helped Springfield, Illinois teenager Frank Mitchell get appointed as the first African-American page in the U.S. House of Representatives since Reconstruction in 1965 after consulting with then-House GOP leader Gerald Ford to get more African-American people involved in the Republican Party. Ford used one of his page appointments to name Mitchell. Mitchell and Findley remained friends until Findley's death in 2019. Findley was later quoted as saying it was one of his proudest accomplishments.
A review of the book in the Washington Post stated: "Stripped of all the maudlin martyrdom, former congressman Paul Findley's message is straightforward and valid: Israeli influence in the United States, including in the inner sanctums of government, is very strong."The New York Times review by Adam Clymer described the book as "an angry, one-sided book that seems often to be little more than a stringing together of stray incidents ... [it] does not really accept the idea that people of any political point of view are entitled to organize, support their friends and try to defeat the people they think are their enemies". The review describes the book as "the typical reaction of a Congressman who is offended at being challenged seriously for his seat, especially if the upstart should go so far as to beat him."
Findley listed the Israeli lobby as one of the factors contributing to his defeat in 1982, alongside the national recession of 1982 and the change of his district's boundaries after the 1980 census. "In seeking gains for Israel, they rigorously stifled dissent and intimidated the entire Congress. They still do. They defeat legislators who criticize Israel. Senators Adlai Stevenson III and Charles H. Percy, and Representatives Pete McCloskey, Cynthia McKinney, Earl F. Hilliard, and myself were defeated at the polls by candidates heavily financed by pro-Israel forces. McKinney alone was able to regain her seat in Congress."
The Anti-Defamation League has criticized the Council for the National Interest, of which Findley was a founder, as an "anti-Israel organization" that "disseminates demonizing propaganda about Israel to academics, politicians, and other audiences." The Anti-Defamation League alleges that as a member of the Council for the National Interest that they have disseminated cartoons with anti-Semitic based themes by Khalil Bendib. Additionally, the Anti-Defamation League has quoted Paul Findley from an article in 2003 as blaming U.S. support of Israel for the September 11 Attacks: "Nine-eleven would not have occurred if the U.S. government had refused to help Israel humiliate and destroy Palestinian society." Paul Findley continued in the same article stating that "America suffered 9/11 and its aftermath and may soon be at war with Iraq, mainly because U.S. policy in the Middle East is made in Israel, not in Washington."
Findley died on August 9, 2019, at Passavant Area Hospital in Jacksonville, Illinois, at the age of 98. He is survived by his son and daughter, four grandchildren and four great-grandchildren.
The Transparent Cabal: The Neoconservative Agenda, War in the Middle East, and the National Interest of Israel (Foreword). 2008. Ihs Press. ISBN978-1-932528-17-6
Silent No More: Confronting America's False Images of Islam. 2001. Amana Publications. ISBN1-59008-001-7