John Sumners Tanner is a former American politician who served as the U.S. representative for Tennessee's 8th congressional district, serving from 1989 until 2011. He is a member of the Democratic Party. Since his retirement, Tanner has served as the Vice Chairman of Prime Policy Group.

The NATO Parliamentary Assembly serves as the consultative interparliamentary organisation for the North Atlantic Treaty Organization. Its current President is Michał Szczerba from Poland, elected in 2023. Its current Secretary General is Ruxandra Popa, who has been in this position since January 2020.