S. 3335 · 117th Congress Robocall Trace Back Enhancement Act StageIn committee SponsorJohn Thune Introduced2021-12-08 Latest action2021-12-08 · Introduced in Senate Follow Summary Text Subjects Cosponsors (9) Votes (0) Actions Cosponsors (9) Dan Sullivan Current member Senate AK Republican Susan Collins Current member Senate ME Republican Ben Luján Current member Senate NM Democrat John Hickenlooper Current member Senate CO Democrat Jerry Moran Current member Senate KS Republican Raphael Warnock Current member Senate GA Democrat Deb Fischer Current member Senate NE Republican Amy Klobuchar Current member Senate MN Democrat Ed Markey Current member Senate MA Democrat