This week marks one year since Donald Trump re-entered the White House. Lisa Desjardins looks at Trump's expansion of presidential power and how it’s testing Congress, and the system of checks and balances rooted in the Constitution. | PBS NewsHour

WATCH: Republicans need to win the midterm elections or Democrats will "find a reason to impeach me," President Donald Trump told House GOP members on Tuesday. | PBS NewsHour

66K views · 562 reactions | Watch on NewsHour: President Trump invokes new powers to combat the coronavirus pandemic | PBS NewsHour | Facebook

8.7K views · 392 reactions | The PBS News Hour has had five different names and six official anchors since it first aired in 1975. Through it all, we've stayed true to our mission of delivering fair, accurate and in-depth reporting. To celebrate 50 years of bringing news and context to viewers like you, we're taking a look back at how anchors have opened our program over the last five decades. | PBS NewsHour | Facebook

42K views · 348 reactions | President Trump is facing new accusations of racism after mocking Lakers star LeBron James' intelligence. In 2017, fellow NBA player Alonzo Mourning joined NewsHour's Charlayne Hunter-Gault to discuss his take on the intersection of sports and politics. | PBS NewsHour | Facebook

127K views · 3.5K reactions | WATCH: When asked about the president's tweets saying the FBI's reputation is in "tatters," FBI Director Christopher Wray told members of Congress, "The FBI that I see is tens of thousands of brave men and women working as hard as they can to keep people they will never know safe from harm." | PBS NewsHour | Facebook

With Republicans slated to take control of the House in January, Judy Woodruff spoke to Democrat Rep. James Clyburn of South Carolina about his party’s year-end priorities. https://to.pbs.org/3MzB3rB | PBS NewsHour