In May 1882, Fritz was elected to the Milwaukee Common Council as alderman for the Sixth Ward to succeed Henry Smith, who had just resigned to become city comptroller.
[2] Fritz was described in 1887 as, "smaller than the average of men; has light hair and beard, and blue eyes, and is modest in his dress.
"[3] The Senate was redistricted, putting Fritz into the 4th district, and in 1888 he lost to the 4th District incumbent Republican John J. Kempf, with 5,262 votes for Kempf; 3,631 for Democrat August Rebhahn; and 1,301 for Fritz.
[4] In 1892, he was the Populist nominee for Wisconsin's 4th Congressional District, losing to Democratic incumbent John L. Mitchell, who polled 19,616 votes to 18,294 for Theobald Otjen, and 829 for Fritz.
In 1900, he was the Populist nominee for Mayor of Milwaukee against corrupt incumbent David Stuart Rose.