when comparing presidents of the 1800s to those of the 1900s and 2000s, modern presidents are more involved…

Brief Explanations:

Over time, as the economy became more complex and interconnected, modern presidents (1900s - 2000s) took on a more active role in economic matters compared to presidents in the 1800s. In the 1800s, the government had a more laissez - faire approach to the economy. In the 1900s and 2000s, due to events like the Great Depression and globalization, presidents had to be more involved in economic issues such as fiscal and monetary policies, job creation, and regulation.

Answer:

economic issues.