|Pres. Pro Tem||Chuck Grassley||--|
|Leader||Mitch McConnell||Chuck Schumer|
|Whip||John Thune||Richard Durbin|
|Seats||53||45 + 2|
|Two independents caucus with the Democrats.|
|U.S. House of Representatives
|Leader||Kevin McCarthy||Steny Hoyer|
|Whip||Steve Scalise||James Clyburn|
|The real leaders in each chamber are in bold face.
NOTE: For months after the Dec. 9, 2018 elections, two House seats were in dispute and/or too close to call, one of which (in NC) the Democrats won in a special election after the Republican candidate withdrew in the midst of fraud allegations. As of September, 2019, one seat is held by an independent.