Tamara Keith

President Trump continues to defend his actions around Ukraine even as officials like his acting chief of staff have undercut the story he's told about the phone call with Ukraine's leader.

We examine the Trump-Giuliani relationship amid investigations into the administration's dealings in Ukraine, plus this week's expected testimony in the impeachment investigations.

Long before the phone call that sparked a whistleblower complaint and then an impeachment inquiry, the story of Ukraine was a preoccupation for the president.

President Trump says he doesn't know the two Florida-based businessmen who are associates of his personal lawyer, Rudy Giuliani, who were charged with campaign finance violations in a separate matter.

Every time President Trump is accused of some wrongdoing, he first denies it. But faced with irrefutable evidence, he goes all in, either on Twitter or in a live press event.

An NPR analysis finds the president's use of heated phrases such as coup, treason, enemy of the people and corrupt media jumped considerably beginning in March. October is on pace to set a record.

As an impeachment inquiry against President Trump has accelerated, his rhetoric has gotten more heated. An analysis shows he's using even stronger words about his political opponents than before.

The Trump campaign says recent moves by House Democrats helped supercharge the president's fundraising.

As the House accelerates its impeachment inquiry of President Trump, he's sending vitriolic tweets about his rivals and trying to make the case he did nothing wrong in his call with Ukraine's leader.

While a top White House aide insists President Trump doesn't need a dedicated team to fight impeachment, his reelection campaign launched a multimillion-dollar ad buy to defend him.

Ukraine has long been a focus of President Trump's interest, including the country's involvement in the eventual imprisonment of his former campaign adviser Paul Manafort.

President Trump addresses the matter of his phone call with Ukraine's president during a press conference in New York City on Wednesday.

The Trump administration releases a memo of a call between President Trump and Ukraine's leader. A big question: did Trump pressure the Ukrainian president to investigate a political opponent?

NPR's Tamara Keith outlines expected rhetoric from congressional Democrats and the White House to the memorandum of the phone call between Trump and the Ukrainian president.

The president says he will unveil the unredacted text of his much-discussed July phone conversation with Ukraine's leader. Meanwhile, House Speaker Nancy Pelosi announced a formal impeachment inquiry.

President Trump's story about his discussions about asking Ukrainian authorities to investigate Joe Biden's son has shifted. Now, more House Democrats are raising the prospect of impeachment again.

The ouster of national security adviser John Bolton again highlights the large number of vacancies at the top levels of the Trump administration.

The House oversight committee is investigating increased Air Force use of an airport with an official partnership with President Trump's Turnberry golf resort, as ethics questions swirl.

Former South Carolina Congressman Mark Sanford says he'll challenge President Trump for the 2020 GOP nomination. Although he's the third Republican to join the fray, none are expected to beat Trump.

The former South Carolina congressman announced Sunday that he's joining the Republican primary, one day after the GOP in his home state canceled its 2020 primary contest.