Bidens Welcome New German Shepherd Puppy, Commander, at White House

Christmas came early for President Biden -- the guy has a new four-legged addition to his family ... and he's showing off his present at 1600 Pennsylvania Avenue.

First Lady Jill Biden's press secretary confirmed Monday ... yes, the Bidens have a new dog in their midst, a German Shepherd puppy named Commander. Shortly after the news broke, the Prez took to Twitter himself and gave official word with a sweet shot.

He tagged his pic with "Welcome to the White House, Commander" ... showing off the cute little guy running through some grass with a ball in his mouth.

Joe posted a video, too, that featured Commander ... and he seems to be making himself at home already.

Word of a new pooch in the Biden brood started percolating when folks saw Commander here running across the South Lawn. According to reports ... he's a gift to the Prez from his own family, one they apparently couldn't keep hidden until this weekend.

The dog is a welcome sight, we're sure, for 46 and Dr. Biden ... who just lost their first beloved Shepherd, Champ, back in June at the age of 13. They have another GS, Major, that's still kicking -- but he's been a bit of a bad boy lately with his chompers.

Here's hoping Commander is better behaved. Oh, and BTW, the pets could well keep rolling into the front doors of the WH in the near future. The First Lady said earlier this year they'd be getting a cat soon.