| Republicans | Democrats |
|---|---|
| Lamar Alexander, Tenn., chairman | Patty Murray, Wash., ranking member*** |
| Michael B. Enzi, Wyo. | Barbara Mikulski, Md. |
| Richard M. Burr, N.C. | Bernard Sanders, Vt. |
| Johnny Isakson, Ga. | Bob Casey, Pa. |
| Rand Paul, Ky. | Al Franken, Minn. |
| Susan Collins, Maine* | Michael Bennet, Colo. |
| Lisa Murkowski, Alaska | Sheldon Whitehouse, R.I. |
| Mark S. Kirk, Ill. | Tammy Baldwin, Wis. |
| Tim Scott, S.C. | Christopher S. Murphy, Conn. |
| Orrin G. Hatch, Utah | Elizabeth Warren, Mass. |
| Pat Roberts, Kan. | |
| Bill Cassidy, La.** |
*New to committee
**New to Senate
***New top member of his or her caucus on committee (i.e., the Democrat was not chairman in the 113th, or the Republican was not ranking member in the 113th).