Power in Washington

See who controlled Congress, the Senate, and the White House.

Explore unified and divided government across election cycles. This page shows how control of the House, Senate, and presidency changed over time — and why that matters for governing power.

Why this is worth unlocking

  • Track unified vs. divided government
  • Compare House, Senate, and presidency control
  • Understand gridlock, oversight, and agenda power
  • Filter historical control patterns by party and year
24Unified governments
8Divided governments
4Split House/Senate periods
1900–2024Election-year range

Unlock Power in Washington

This is a paid election-data tool. Upgrade to Basic or higher to explore congressional control, unified government, divided government, and branch-by-branch party control.

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