Patrick Joseph Toomey Jr., commonly known as Pat Toomey, is an American businessman and politician born on November 17, 1961. He served as a United States Senator from Pennsylvania from 2011 to 2023, succeeding Arlen Specter, and represented the Republican Party. Prior to his Senate tenure, Toomey was a member of the U.S. House of Representatives for Pennsylvania's 15th congressional district, serving three terms from 1999 to 2005. His political career began locally in 1994 when he was elected to the Government Study Commission in Allentown, Pennsylvania. Before entering politics, Toomey worked in international finance after graduating from Harvard University in 1984 and co-founded a sports restaurant called "Rookie’s" in Allentown with his brothers.

Throughout his congressional career, Toomey advocated fiscal conservatism, limited government, and free-market principles. As a Senator, he was involved in key economic and financial policy debates, including efforts to reduce federal spending, reform entitlements, and participated in the 2011 debt ceiling negotiations. He was known for his libertarian-leaning views within the Republican Party. Toomey faced competitive re-election campaigns, notably narrowly defeating Democrat Katie McGinty in 2016. His positions on issues such as gun control, healthcare, and economic policy have drawn both praise and criticism. Toomey's relationships within the party were complex, including endorsements and public disagreements with figures like Ted Cruz. He did not seek re-election in 2022, citing a desire to pursue other opportunities after more than two decades in public service, and has since remained active in political commentary and advocacy.