Joseph Raymond "Joe" McCarthy was an American legislator who was a U.S. Representative from the condition of Wisconsin from 1947 until his demise in 1957. Congressperson McCarthy first declares that the State Department was invaded with communists at a crusade rally.
The increased migration and increased population that the United States saw during (any) era are examples of "<span>c. demographic and environmental changes," since these have to do mainly with population distribution. </span>
Political leaders, including President Kennedy initially opposed the March out of fear of violence. President eventually gave his approval but political leaders were not part of the program.
Explanation: While the Red Scare drove America's left and any possible allies with communism or socialism underground, it also allowed for a real anger to form and pushed conversations about social justice into back rooms.