Answer: congress
Step-by-step explanation:
i took ap gov last year,
the supreme court interprets laws, they don't dapple in 'overriding' the president
members of the executive branch work under the president- especially in regards to militia
voters is completely wrong because their power comes from electing the president, there's no '3/4 vote' to veto
Congress is the correct answer - they use checks and balances to override the president on occasion by passing 2/3's (majority) to veto it