Trump administration live updates: Defense Secretary Pete Hegseth to address House impeachment threat

What to know today IMPEACHMENT EFFORT: Defense Secretary Pete Hegseth will hold a news conference this morning to address Rep. Thomas Massie's effort to impeach him over the U.S. war with Iran and other military actions ordered by President Donald Trump. Massie, R-Ky., reintroduced articles of impeachment against Hegseth yesterday. CONGRESS LEADERSHIP: House and Senate Republicans will select their leadership teams for the new Congress today after Democrats swept them from power in last Tuesday's midterm elections. DATA DIVE: NBC News chief data analyst Steve Kornacki looks at the voting shifts that powered Democrats to historic victories in Texas in The Data Dive, his subscriber-exclusive newsletter about the numbers that drive the news.

Live updates and the latest news on the Trump administration as Defense Secretary Pete Hegseth addresses a House impeachment threat and Republicans choose their leadership for the new Congress.