Reagan was a staunch advocate for free markets, economic liberty, and growth which benefitted all Americans.

Real Gross National Product (GNP) rose by 26% and real economic growth averaged 3.2% annually, following the malaise created by Carter. Approximately 20 million new jobs were created, and the national unemployment rate dropped from a high of 7.6% down to 5.5%. Inflation fell sharply from 13.5% in 1980 to 4.1% by 1988. The poverty rate which peaked at 15.2 % dropped to 12.8 % when he left office.

Trump wants to control the free market with tariffs (usually a Democrat thing) and advocates for state ownership of private business both policies vehemently opposed by Reagan.

I hope that answers your question.