What vestiges of Progressivism can we see in our modern lives—politically, economically, and socially? Which of our present-day political processes, laws, institutions, and attitudes have roots in this era? Why have they had such staying power?

There are vestiges of Progressivism in many of the anti-trust legislation that are still in place and labor laws, as they have their roots in the Progressivism movement.

Explanation:

Progressivism was a broad movement that arose between 1896 and 1916 and was primarily led by white, middle-class professionals. They sought solutions to the problems that were arising in the modern era due to rapid economic expansion and political and corporate corruption and industrialization. They also looked for solutions to counter the ill effects of urbanization.  Many of our current child labor laws, for example, have their foundations in this movement. Also, anti-trust legislation from that era is still in effect: the Sherman and Clayton antitrust acts remain in force today. These acts establish certain business practices to be unethical like price-fixing and creating Monopolies. They also uphold various workers' rights like limits on the length of the workday.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”