Judicial Crisis Network (JCN), a conservative political advocacy group, has already spent almost $1.1 million on more than 2,121 television ad spots since February to support the confirmation of U.S. Supreme Court nominee Neil Gorsuch, according to numbers compiled by Bloomberg BNA from Kantar/CMAG data.

JCN’s spending easily dwarfs the $17,000 spent by People for the American Way (PFAW)—the progressive group started by television and film producer Norman Lear—against the nominee.

Typically these ads from JCN and PFAW urge the public to tell their senators to vote for or against Gorsuch.

No other groups are listed as having released advertising...