He was an American labor leader and civil rights activist
The correct answer to this open question is the following.
The question does not include options. We do not know the name of the individuals you are referring to. You also did not mention what period in the history of the US you are referring to.
So although your question is incomplete, we can help you answer in the following general terms.
We assume you are referring to the Progressive era in the United States history from the 1880s to the 1920s.
During this era, many reformers demanded changes in US politics and economics. After many injustices lived during the Gilded Age, muckraker journalists exposed the corruption activities of many legislators and politicians. The federal government created legislation to stop this situation and also created laws to eliminate monopolies in the economy.
So we can say that reformers built a foundation to change the political and economic scene in the US, as well as society.
Segregation and Jim Crow as well as other constitutional measures
The most important political leaders during this time were Theodore Roosevelt, Robert M. La Follette, Charles Evans Hughes, and Herbert Hoover. Some democratic leaders included William Jennings Bryan, Woodrow Wilson, and Al Smith. This movement targeted the regulations of huge monopolies and corporations.
Answer:
Pontiac, Michigan, U.S. Gary Charles Peters Sr. (born December 1, 1958) is an American politician serving as the junior United States Senator from Michigan since 2015. ... He represented Michigan's 9th congressional district from 2009 to 2013.