Republican Sen. Lamar Alexander of Tennessee will oppose calling more witnesses in President Donald Trump’s impeachment trial, all but dashing Democratic efforts to hear more testimony and pushing the Senate toward a vote to acquit Trump as soon as Friday.

In a striking shift from President Donald Trump’s claim of “perfect” dealings with Ukraine, his defense asserted at his Senate trial that a trade of U.S. military aid for political favors — even if proven — could not be grounds for his impeachment.

The president’s legal team has wrapped up its impeachment defense. What’s next? And what to make of the trial so far? We ask law professor and former Supreme Court clerk Carolyn Shapiro and journalist Chris Bury.

The president’s lawyers on Monday resumed their impeachment defense that began on Saturday – but there was an elephant in the room.

President Donald Trump’s impeachment trial enters a pivotal week as his defense team resumes its case and senators face a critical vote on whether to hear witnesses or proceed directly to a vote.

It’s day two of opening arguments in the impeachment trial of President Donald Trump, and House managers are laying out their case for abuse of power. A former Supreme Court clerk offers his take on the proceedings so far.

Americans are sharply divided along party lines about whether President Donald Trump should be removed from office, and they doubt the Senate impeachment trial will do anything to change their minds, according to a new poll.

A look at the main points Democrats are making as they argue for President Donald Trump’s removal from office, and Trump’s response as the defense team pushes for his speedy acquittal.

President Donald Trump’s impeachment trial quickly burst into a partisan fight Tuesday at the Capitol as Democrats objected strongly to rules proposed by the Republican leader for compressed arguments and a speedy trial.

Senate Majority Leader Mitch McConnell on Monday proposed a condensed, two-day calendar for each side to give opening arguments in President Donald Trump’s impeachment trial, ground rules that are raising objections from Democrats.

President Donald Trump’s legal team for his Senate impeachment trial will include a pair of well-known attorneys who have vigorously defended Trump on television and played roles in some of the most consequential legal dramas in recent history.

The impeachment of President Donald Trump is the Senate’s challenge now. Look Thursday for a series of striking ceremonial matters to set up the Senate as a court of impeachment. 

After nearly a month of delay, the House of Representatives voted Wednesday to transmit articles of impeachment for the trial of President Donald Trump to the Senate. We discuss the latest and look ahead.

The seven-member prosecution team will be led by the chairmen of the House impeachment proceedings, Reps. Adam Schiff of the Intelligence Committee and Jerry Nadler of the Judiciary Committee.

The U.S. House is set to vote Wednesday to send the articles of impeachment against President Donald Trump to the Senate, and pressure was mounting Tuesday on senators to call fresh witnesses for the historic trial.

Reigniting a debate over who has the power to declare war, the Democratic-controlled House on Thursday approved a resolution asserting that President Donald Trump must seek approval from Congress before engaging in further military action against Iran.