The idea that the different branches of government should control different areas and not infringe on one another is known as Checks and balances
Separation of powers
Federalism

Can someone pls answer quick

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.