Question

Congress passes a bill- The president veto's a bill- congress overrides the presidential veto

Which principle of U.S. government is illustrated in the sequence above?
judicial review
checks and balances
popular sovereignty
federalism
is it a?
Reed
What judicial bench is involved in this? No, it's not A.
ken
If the bill pass after president veto it, is the vote of congreese called supermajority?