Naomi and Joe Biden.Photo: Naomi Biden / Instagram

Naomi Biden

Joe Bidenis taking another victory lap!

“A little rusty but he still won (barely),” she added.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Naomi also posted two images of her grandfather on Twitter Sunday, showing himposing outdoors in a Camp David hat.

President Biden also wore an Air Force One leather jacket that reads, “JOE BIDEN / COMMANDER IN CHIEF.”

“We bought him some swag since it’sPresidents' Dayweekend and he’s ‘literally’ President,” Naomi wrote in her first tweet.

In a follow-up post, the politician showed off the back on the hat — which reads, “POP” — and Naomi joked in her tweet, “And just to make sure thejob title doesn’t get to his head… "

RELATED VIDEO: The White House Rules for the Bidens' German Shepherds (and What They Can Still Get Away With)

Naomi, who is the daughter of the president’s sonHunter Biden, toldTodaylast month that she and the rest of President Biden’s grandchildren sat down ahead of the 2020 election to help convince him his decision to run for president was a good one.

“We just kind of all agreed that we had to sit my grandparents down face-to-face and tell them not only that we want them to run but that we’ll be okay if they do run,” she said.

Naomi also said that it was her cousin Robert “Hunter” who showed their grandfather a tabloid story about the family, to acknowledge that the grandchildren knew the road ahead would have challenges —but they were willing to take it on.

“I think it was actually little Hunter who showed him [a tabloid story on his phone] but then basically said to him, ‘We know it’s going to be bad,’ " she said. " ‘But we have each other and we know the truth. And we will be okay.’ So I think he came out of that meeting feeling a little bit more comforted.”

source: people.com