State politics McLaughlin was an alternate delegate to the
Democratic Party of Arkansas' state convention in 1910, a delegate to the 1914 convention, and a delegate to the
1948 Democratic National Convention. Whittington convinced McLaughlin to run with him for seats representing
Garland County in the state house. Due to his youth, McLaughlin knew little about political issues and took safe positions on issues, such as allowing counties to vote on whether or not they wanted a prohibition of alcohol. They defeated four other candidates for the Democratic nominations and won in the 1910 election. McLaughlin, at age 22, was the youngest member of the state house. He served on the Judiciary, Banks and Banking, and Natural Resources committee. McLaughlin supported
Stephen Brundidge Jr. for the Democratic gubernatorial nomination in
1913 and later supported
George Washington Hays. He supported Governor
Carl E. Bailey's campaign for a seat in the
United States Senate in the
1937 special election and put forward the motion to have the Democratic nomination be given to Bailey. Bailey lost the election, but won in Hot Springs. McLaughlin supported Bailey for reelection in the
1940 gubernatorial election, but he lost to
Homer Martin Adkins. He led Attorney General
Jack Wilson Holt Sr.'s campaign in Garland County during the
1942 U.S. Senate election.
Local politics McLaughlin received the Democratic nomination to run for
city attorney of Hot Springs and defeated Sam McConnell, a member of the
Republican Party who ran as an
independent, in the 1912 election. He was the youngest person elected as city attorney at that time. He succeeded J. A. Stallcup as the city attorney. During the 1915 election McLaughlin's opponent Peyton T. Jordan attacked him for not having a law degree as it meant he could not represent the city before the
Arkansas Supreme Court. McLaughlin grew unpopular due to his opposition to the construction of a
sanatorium on land owned by his family. He won the Democratic primary in December 1915, which was normally tantamount to election. James McConnell, a Republican running as an independent and with the support of Mayor Jacob W. McClendon, defeated McLaughlin in the 1916 election. After the United States joined
World War I, McLaughlin was eligible to be
drafted into the
United States Army and underwent a pre-induction physical on January 24, 1918. McLaughlin defeated James McConnell and Sam Garrett in the 1918 election. He hoped that winning the election would prevent him from being drafted, but he was drafted on May 27. He reported to
Camp Beauregard, where he was assigned to Company G of the
156th Infantry Regiment and then the 114th Field Signal Battalion. His unit was transported from New Jersey to France by the
USS Leviathan in September 1918, but the
armistice occurred before his unit was sent to combat. He was promoted to
corporal before his honorable discharge on April 26, 1919. He faced no opposition in 1922. McLaughlin was a member of the Garland County Democratic Central Committee and was selected to be its secretary in 1912. He served as the party's chair and Jacob L. King, a member of McLaughlin's opposition, succeeded him as chair in 1948. ==Mayoralty==