Sen. John Cornyn (R-Texas) Cornyn is a senior member of the Senate Judiciary Committee who negotiated with Sen. Chris Murphy (D-Conn.) last year on legislation to expand background checks for commercial sellers but without success. Cornyn scored one of the few notable accomplishments on gun violence legislation in recent years when he coauthored and helped pass the Fix NICS Act in 2018. The legislation required federal agencies to produce plans for uploading all relevant information to the National Instant Criminal Background Checks System. McConnell tapped Cornyn to lead the negotiations for Republicans shortly after a bipartisan group of senators met...