It's unclear who'll take over at the Pentagon and the military services when the top leaders all step down Monday as President-elect Donald Trump is sworn into office.

Donald Trump used his speech after his swearing-in ceremony to take apart the four years of the Joe Biden-Kamala Harris administration. Biden by then had granted pardons to all and sundry. So, the roast was the best revenge that Trump could take.

The decision by Biden on Monday came after Donald Trump warned of an enemies list filled with those who have crossed him politically or sought to hold him accountable for his attempt to overturn his 2020 election loss and his role in the storming of the US Capitol on January 6, 2021.

Chairman of the Joint Chiefs of Staff Gen. CQ Brown, from left, President Joe Biden, Vice President Kamala Harris and Defense Secretary Lloyd Austin watch during a Department of Defense Commander ...

Chairman of the Joint Chiefs of Staff Gen. CQ Brown, from left, President Joe Biden, Vice President Kamala Harris and Defense Secretary Lloyd Austin watch during a Department of Defense Commander ...

Vice-President Kamala ... up Harris with Emhoff. Harris has also kept some of her recent aides especially close. Lorraine Voles and Sheila Nix, her official and campaign-side chiefs of staff ...

Throughout his campaign, US President-elect Donald Trump was vocal about his intent to confront anyone he viewed as obstructing his path back to the White House. With his victory now secured, apprehension is growing over whether Trump will make good on his fiery promises.

"The golden age of America begins right now," Trump says in inaugural speech; White House says US to withdraw from Paris deal, immigration app comes to end.

Vice President Harris certifies the Electoral College vote as Speaker Mike Johnson applauds during a joint session of Congress on Jan ... Vice President Harris speaks to her staff, former aides and friends before signing the drawer of her desk in the ...

In an unusual move, the departing US president has used his last day in office to protect his own family members from Donald Trump’s potential revenge.

Donald Trump takes the oath as the 47th US president in a grand ceremony at Capitol Hill. Attended by global leaders, Trump vows major changes, including the largest deportation program, completing the border wall,

The former vice president’s first acts as a nonelected official for the first time in decades could be a sign of what comes next.