What should we expect from the seventh debate?

The conflict in Iran will likely be a major topic of discussion.

The senators that are still in the presidential race returned to Capitol Hill on January 8 for a classified briefing. It was a chance for them to raise questions about President Donald Trump's strategy.

On January 9, the House moved toward approval of a non-binding measure limiting President Trump's ability to take military action against Iran as criticism of the U.S. killing of a top Iranian general intensified. Speaker Nancy Pelosi said that while the war powers resolution does not require President Trump's signature, it nonetheless "has real teeth" because it is "a statement of the Congress of the United States.'' Republicans denounced the House measure as little more than "a press release" designed to attack the president. Trump and Vice President Mike Pence urged GOP lawmakers to oppose the plan.

Pelosi said the drone strike that killed Gen. Qassem Soleimani was "provocative and disproportionate." Iran retaliated by firing missiles at two military bases in Iraq housing U.S. troops.

Another topic viewers should expect to hear about at the seventh debate is the December 18 impeachment of President Trump.

Pelosi says she'll soon transmit the articles of impeachment against the president to the Senate for a trial. It's a sign of a potential thaw in the standoff with Senate Republicans as Pelosi warns against rushing to an acquittal without a fair trial.

Pelosi faces mounting pressure from Republicans and some Democrats to quit delaying the trial. It's been more than three weeks since the House impeached Trump on charges of abuse and obstruction. Republicans say Democrats are embarrassed by their vote. But Pelosi says Democrats are “proud'' of upholding the Constitution. Many on Capitol Hill expect the trial to begin as early as this week.