What were major accomplishments and and toughest obstacles that occured on the presidency of Ronald Reagan?

Ronald Reagan's presidency (1981-1989) is marked by significant accomplishments, including the implementation of supply-side economic policies, known as "Reaganomics," which aimed to stimulate growth through tax cuts and deregulation. His administration also saw the end of the Cold War, highlighted by the INF Treaty with the Soviet Union, which reduced nuclear arms. However, Reagan faced tough obstacles, such as the Iran-Contra scandal, where his administration covertly facilitated arms sales to Iran to fund Contra rebels in Nicaragua, which raised serious ethical and legal concerns. Additionally, economic challenges like high unemployment and inflation during his first term posed significant hurdles that tested his policies and leadership.