[4] After the war the senator was active in the investigation of German and Bolshevik propaganda and played a role in bringing on the first Red Scare that plagued American politics in 1919 and 1920.

This was after the first World War when many innocent men and women were being called in and taken away from their jobs and lives and brought in for questioning and even jailed at some points.

He wrote and sponsored the Overman Act of 1918, which gave President Woodrow Wilson extraordinary powers to coordinate government agencies in wartime.

"[6] In World War II, the United States liberty ship SS Lee S. Overman was named in his honor.

After the war the senator was active in the investigation of German and Bolshevik propaganda and played a role in bringing on the so-called Red Scare that plagued American politics in 1919 and 1920 (Beaver).