was a Republican state; in fact, it is the state that gave birth to the Republican Party, although ethno-religious issues in the late 19th century caused a brief split in the coalition. The Bennett Law campaign of 1890 dealt with foreign language teaching in schools. Many Germans switched to the Democratic Party because of the Republican Party's support of the law. Wisconsin's political history encompasses, on the one hand, "Fighting Bob" La Follette and the Progressive movement, and on the other, the Republican and anti-Communist Joe McCarthy. From the early 20th century, the Socialist Party of America had a base in Milwaukee. The phenomenon was referred to as "sewer socialism" because the elected officials were more concerned with public works and reform than with revolution (although revolutionary socialism existed in the city as well). Its influence faded in the late 1950s largely because of the red scare and racial tensions. The first Socialist mayor of a large city in the United States was Emil Seidel, elected mayor of Milwaukee in 1910; another Socialist, Daniel Hoan, was mayor of Milwaukee from 1916 to 1940; and a third, Frank P. Zeidler, from 1948 to 1960. Succeeding Frank Zeidler, the last of Milwaukee's Socialist mayors, Henry Maier, a former Wisconsin State Senator and member of the Democratic Party was elected mayor of Milwaukee in 1960. Maier remained in office for 28 years, the longest-serving mayor in Milwaukee history. Socialist newspaper editor Victor Berger was repeatedly elected as a U.S. Representative, although he was prevented from serving for some time because of his opposition to the First World War. Through the first half of the 20th century, Wisconsin's politics were dominated by Robert La Follette and his sons, originally of the Republican Party, but later of the revived Progressive Party. Since 1945, the state has maintained a close balance between Republicans and Democrats. Recent leading Republicans include former Governor Tommy Thompson and Congressman Jim Sensenbrenner; prominent Democrats include Senators Herb Kohl and Russ Feingold, the only Senator to vote against the Patriot Act in 2001, and Congressman David Obey. Federal elections In 2020, Wisconsin leaned back in the Democratic party's direction as Joe Biden won the state by an even narrower margin of 0.7%. Biden's win was largely carried by Milwaukee and Dane counties with the rural areas of the state being carried by Trump. Wisconsin has leaned Democratic in recent presidential elections, although