What is one reform or solution that comes about due to the exposure that any of these Muckrakers helped create? (Short response is even appropriate)

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.

donald trump is the republican president of the united states. he is the 45th president. he's important because he is the leader of the u.s.   he decides how the laws of the united states are to be enforced and chooses officials and advisors to run the executive branch. the constitution makes the president commander in chief of the nation's armed forces. he is a very important person.