Why and how has America’s “democracy” change over time?

Democratic decline is caused by the state-led weakening of political institutions that sustain the democratic system, such as the peaceful transition of power. These essential components of democracy can be threatened in different ways; thus, the concept of democratic backsliding can take various forms.

what are local authorities doing to fix the problem

explanation: what are local authorities doing to fix the problem

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.