Rep. Thomas Massie, a Republican from Kentucky, reintroduced articles of impeachment against Defense Secretary Pete Hegseth on Monday, alleging that the embattled Pentagon chief had committed "high crimes and misdemeanors" and abused the power of his office by violating the War Powers Resolution, conducting military operations without congressional authorization and ordering unlawful military actions in several countries.

The expected impeachment filing came as Congress returned to Washington, D.C., to begin a lame-duck session following the historic rout that the GO...