[1][2] In the November 6 nonpartisan blanket primary to fill the remainder of Schedler's term through January 2020, Ardoin received 298,652 votes (20 percent), finishing in first place and advancing to the runoff election, where he faced Democratic candidate Gwen Collins-Greenup, who finished with 289,070 votes (also 20 percent).

[4] In July 2019, Ardoin hired State Representative Nancy Landry of Lafayette to become his chief of staff.

[5] In the 2019 Louisiana elections, Ardoin defeated Collins-Greenup to secure a full term as secretary of state, 59% to 41%.

[6] In 2021, Ardoin welcomed Phil Waldron, who argued against the certification of Joe Biden's victory in the 2020 presidential election on the basis of false claims of fraud, to speak at a state commission charged with shaping Louisiana’s voting system.

"[7] In January 2022, Ardoin announced that Louisiana would suspend its participation in the Electronic Registration Information Center (ERIC), citing “concerns raised by citizens, government watchdog organizations and media reports about potential questionable funding sources and that possibly partisan actors may have access to ERIC network data.” That July, Ardoin’s office issued a letter withdrawing from the ERIC program entirely.