Antitrust, Privacy Bills Lose Key Backer as Cicilline Departs

David Cicilline, who resigned Thursday after more than 12 years in the House, was a leading advocate of overhauling antitrust laws to curb the power of large technology companies.

When Democrats had the majority, he headed the House Judiciary antitrust subcommittee, where he worked with Rep. Ken Buck (R-Colo.) to advance bills to address anticompetitive practices.

One of the first openly gay members of Congress, he sponsored the Equality Act, which would have included sexual orientation and gender identity in an expanded definition of federal civil rights. As he stepped down, that measure was among the unfinished business. Rep. Mark ...