The 9/11 attacks were a sea change in U.S. foreign policy and diminished congressional authority, with partisanship on ...

Only one Republican and one Democratic senator broke with their parties in the Wednesday vote.

At the tail end of the Vietnam War, Congress engaged in a breathtaking act of legislative assertion, affirming that lawmakers ...

Multiple times during Donald Trump’s second presidency, Congress has debated his military authority, first in Latin America and now the Middle East. The latest test will come in the GOP-controlled ...

As some lawmakers claim the U.S. strikes were unconstitutional because Congress wasn’t notified, Republican leaders say the ...

Lawmakers could vote as soon as this week on a resolution aimed at restricting President Trump's military authority against ...

The legislative branch’s majority party is choosing impotence and irrelevance, content to let the executive branch do as it ...

Congress will vote this week on whether to authorize President Donald Trump's war in Iran. It may not matter, experts say.

As Trump bombs Iran, Republican congressional leaders are forfeiting their role in major military operations ...

Democrats and a few Republicans are calling for curbing President Trump's unilateral use of military power in Iran, despite previous such efforts failing to advance.

The Washington Post’s essential guide to power and influence in D.C. Democrats — and some Republicans — hope to make their ...

Top Capitol Hill Democrats, and a small number of Republicans, watched in alarm Saturday as the administration launched a ...