Original sentence: " He helped engineer tax reform, reduce income tax rates and ease tax burdens on corporations.As Chief of Staff, Regan was very involved in the day to day management of White House policy, which led Howard Baker, Regan's successor as Chief of Staff, to give a rebuke that Regan was becoming a "Prime Minister" inside an increasingly complex Imperial Presidency.President Ronald Reagan selected Regan in 1981 to serve as Treasury secretary, marking him as a spokesman for his economic policies, dubbed "Reaganomics.Reagan resigned from his post in 1987 due to his involvement with the Iran-Contra Affair, and frequent clashes with the President's wife, First Lady Nancy Reagan.Regan unexpectedly swapped jobs with then White House Chief of Staff James Baker in 1985
Edited sentence: As Chief of Staff, Regan was very involved in the day to day management of White House policy, which led Howard Baker, Regan's replacement as Chief of Staff, to give a stinging rebuke that Regan was becoming a "Prime Minister" inside an increasingly complex Imperial Presidency.He helped engineer tax reform, reduce income tax rates and ease tax burdens on corporations.President Ronald Reagan selected Regan in 1981 to serve as Treasury secretary, marking him as a spokesman for supply-side economics (also called Reaganomics).Regan unexpectedly switched jobs with then White House Chief of Staff James Baker in 1985, a position he kept until 1987, when he was pressured to resign for his involvement with the Iran-Contra affair (he was also clashing with First Lady Nancy Reagan)