Pou is notable for his support of Louis F. Post, United States Secretary of Labor and head of the Bureau of Immigration, who had, in the era of the Palmer Raids, reversed many of the decisions of the Attorney General and his aide J. Edgar Hoover as to deportations. On April 15, 1920, Kansas Congressman Homer Hoch accused Post of having abused his power and called for his impeachment. The House Committee on Rules planned to ask the President to remove Post instead of impeaching him, so Post requested and was granted a chance to testify. He successfully defended his actions on May 7–8, attacking Attorney General Palmer and others. In a dramatic exchange, Congressman Pou, a Democratic supporter of the anti-radical campaign, praised Post's actions, saying, "I believe you have followed your sense of duty absolutely," and walked out of the room, leaving it in stunned silence. The Rules Committee took no further action.
Name
Asked how to say his name, he told The Literary Digest "Though my name is spelled Pou, it is pronounced as though it were spelled pew or pugh." (Charles Earle Funk, What's the Name, Please?, Funk & Wagnalls, 1936.)