Sen. Lamar Alexander, a leading Republican on health legislation, will not seek reelection

One of Washington’s most influential health policymakers, Sen. Lamar Alexander, will not seek reelection in 2020, he announced Monday. The Tennessee Republican has chaired the powerful Senate Health, Education, Labor, and Pensions Committee since 2015, where he presided over a number of high-profile health care bills, including the 21st Century Cures Act, and the Republican party’s eventually abandoned effort to repeal Obamacare.