The chair is always selected from the majority party and the ranking member is the most senior member of the minority party. The majority party ensures it has a majority on every committee.
Members are listed in order of their rank on the committee and its subcommittees. Committee membership information is from the unitedstates project on github.
There are 1 bills referred to this committee:
S. 2032: Cannabidiol and Marihuana Research Expansion Act
Sponsor: Sen. Dianne Feinstein [D-CA]