The answer is: Both of them, Reagan and Roosvelt were president of the United States of america.
Reagen very much admired Roosvelt in his presidential term. Just like Roosvelt, Reagen were also capable to replace the old forms of politics. Both built a new political order in the aftermath of a vulnerable predecessor who rules in a period of economic trauma, promoting enduring ideological changes in the politics, redefining the country's fundamental philosophy, priorities, and policies as it assesses their similarities, differences, and impacts. The policies are still heavily influenced by these key presidencies nowadays.
Each of these men transformed the way Americans thought about the legitimate role of government, either by providing more security for citizens or by pulling back from federal regulation.