In 1979, the U.S. Congress established de facto diplomatic relations with Taiwan, including a commitment to militarily defend Taiwan from attack.
In 1997, the Senate voted 95-0 to restrict entry of the U.S. into future international climate treaties, ending hopes for legally binding emissions targets for the U.S.
The Senate's attempt to repeal the Affordable Care Act narrowly failed due to a surprise defection by Sen. John McCain
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Explore current and historical political parties, map party control, and learn about polarization.
