The Copernican Revolution changed Europe's GOVERNMENT AND RULING CLASS
Two very particular issues drove Reagan's political conversion: fiscal policy and anti-communism. In the late 1940s, Reagan was facing the end of his career as a movie actor and was finding less and less work. He was upset because he felt that he had only a short window to maximize his earnings and ensure his future financial security and that the present 90% top marginal rate was unreasonable.
Reagan's experience as a board member and later president of the Screen Actors Guild also moved him politically rightward. In this professional capacity he dealt with a strike by a set builder union backed by communist sympathizers.
Answer;
To break a tie vote on a bill
The president of the Senate is allowed to vote on legislative matters in order to break a tie vote on a bill.
Explanation;
Under Article I, section 3 of the constitution, The vice president of the United states shall be the president of the state, but shall have no vote; unless they be equally divided.
The president of the senate presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.
Socialism was a response to industrialization because through the many parties it was based on Karl Marx's ideas.