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Like his brother Dave Treen, John Treen has long been active in the Louisiana Republican Party. While Dave Treen ran for governor on February 1, 1972, in the first of three campaigns for the state's highest office, John Treen in that same election contested a state Senate seat in Jefferson Parish. He lost by 973 votes to the Democrat M. Joseph Tiemann, 16,153 (51.6 percent) to 15,180 (48. percent.)<ref>Louisiana Secretary of State, General Election Returns, February 1, 1972.</ref>

Like his brother Dave Treen, John Treen has long been active in the Louisiana Republican Party. While Dave Treen ran for governor on February 1, 1972, in the first of three campaigns for the state's highest office, John Treen in that same election contested a state Senate seat in Jefferson Parish. He lost by 973 votes to the Democrat M. Joseph Tiemann, 16,153 (51.6 percent) to 15,180 (48. percent.)<ref>Louisiana Secretary of State, General Election Returns, February 1, 1972.</ref>

Considered a particularly observant political commentator, Treen coined the expression: "All things being equal, Cajuns vote for Cajuns."<ref name=cajuns>"General Russel Honeré considering run for Senate," Louisianaweekly.com, accessed November 11, 2009; no longer on-line.</ref> In most statewide and congressional races since 1972 in Louisiana, the candidate from Acadiana, regardless of party, has won statewide and district elections. An exception to that rule came in 1987 when the [[Democratic Party|Democrat]] [[Buddy Roemer]], who defected to the  Republicans in 1991, won without a [[general election]] when his Cajun intra-party rival, Governor [[Edwin Edwards]], withdrew. Another exception occurred in 2004, when Republican [[David Vitter]] defeated Democrat Chris John. Both were then U.S. representatives.<ref name=cajuns/>

Considered a particularly observant political commentator, Joohn Treen coined the expression: "All things being equal, Cajuns vote for Cajuns."<ref name=cajuns>"General Russel L. Honoré considering run for Senate," Louisianaweekly.com, accessed November 11, 2009; no longer on-line.</ref> In most statewide and congressional races since 1972 in Louisiana, the candidate from Acadiana, regardless of party, has won statewide and district elections. An exception to that rule came in 1987 when the [[Democratic Party|Democrat]] [[Buddy Roemer]], who defected to the  Republicans in 1991, won without a [[general election]] when his Cajun intra-party rival, Governor [[Edwin Edwards]], withdrew. Another exception occurred in 2004, when Republican [[David Vitter]] defeated Democrat Chris John. Both were then U.S. representatives.<ref name=cajuns/>

===Treen v. Duke===

===Treen v. Duke===