LEADERS ON THE MOVE.

Illinois Senator Don Harmon (D) will be the chamber's new president

He succeeds Senator John Cullerton (D), who stepped down in mid-January after nearly four decades in the legislature, the last 10 of them as Senate president. Harmon was first elected to the Senate in 2002 and most recently served as assistant majority leader.

Pennsylvania's top leaders plan to step down

Senate President Pro Tem Joe Scarnati (R) will not seek reelection after five terms in the House and 14 years as leader of the Senate. House Speaker Mike Turzai (R) also plans to step down. Turzai was first elected to the House in a special election in 2001. He served as majority leader from 2011 to 2014 and as speaker since 2015.

Louisiana elects new House and Senate leaders

Senator Page Cortez (R) will lead his colleagues as chamber president. Cortez, elected in 2012...