The Constitution provides Congress with plenty of tools to hold the White House to account. So what moves does the legislative branch have left?
Calling witnesses and reviewing documents fit the Founders' goals for impeachment to curb the president's unilateral power.
The impeachment vote is the latest, and most extreme, example of a power struggle between the executive branch and Congress that has existed since George Washington was president.
Even if other parts of the federal government shut down, Congress could – and would have to – keep working. A legal scholar explains why and how that is possible.
Hillary Clinton got the most individual votes from US citizens in 2016, but Donald Trump won the most electoral votes.
A recent vote in the US House of Representatives recognised the Armenian massacre of 1915 as a genocide in a significant moment for the Armenian diaspora.
Democrats and Republicans are speaking about impeachment with dramatically different language. The winner of this frame war will succeed in shaping how Americans understand the impeachment inquiry.
No written law or rule requires the senators to remain silent on the issues. But it's probably a good idea, and a promising sign of fairness.
Bosses tend to be oblivious to the power dynamics at play in such romantic entanglements.
The House of Representatives voted Thursday on a resolution that laid out a process for the inquiry into the impeachment of President Donald Trump. But was the resolution constitutionally necessary?
The impeachment investigation of US president Donald Trump has formally started, but much has changed since 1974, when Richard Nixon was forced out of office.
Senate Majority Leader Mitch McConnell is known as a master of Senate rules. If the House impeaches President Trump, what could he do to influence the process – and outcome – of a trial?
A little-known provision of the Constitution might allow Trump to be reelected president in 2020 even if he is removed from office through the impeachment process.
A former congressional staffer says withholding damning evidence from Congress and using civilians to carry out presidential or intelligence agency agendas links the Ukraine crisis to other scandals.
The Founders saw impeachment as a regular part of ensuring presidential accountability. A constitutional scholar offers a possible process for a rapid and smooth impeachment inquiry.
Whether successful or not – and most impeachments are not – the fallout for the Democrats and the US will be deep and enduring.
The conflict between Congress and President Trump over his dealings with Ukraine's president is just the latest version of a long-running struggle for power between the two branches of government.
The Framers of the Constitution knew their history, and sought to learn from it – and only to repeat the parts they liked.
She's sitting third on the list of Democratic candidates at the moment, but the Massachusetts Senator's growing popularity may catapult her to the nomination.
While the US has the most powerful military machine in history, it is also incomparably the most expensive – and members of Congress work aggressively to maintain it.