Inside Biden’s State Dinner: Hot Dog Talk and a Party That Lasted Until 1 A.M.

No, this is not relatable to the rest of the country, or even to those who operate just beyond the privileged confines of a crowded white tent on the South Lawn.

But the human impulse to gather — particularly after the worst part of a lengthy pandemic — is universal. Officials who planned the event said the need for Mr. Biden and Mr. Macron to project a united front against the Russian invasion of Ukraine was urgent.

“The magnificence of American soft power was on full display,” Mr. Gifford said. “These personal relationships are such the crux of American foreign policy, and that’s why these matter so much.”

Mr. Gifford watched members of the French delegation closely to make sure they were enjoying themselves — and, crucially, the food, which included a selection of American cheeses and triple-cooked butter potatoes.

“The plates were empty, the glasses were empty,” he reported. In other words, none of the French pointed out that the brut rosé and chardonnay on offer was, after all, “American wine,” as the French ambassador did at the state dinner hosted by the Clintons in 1996.

As America’s old alliance was carefully nursed, flashes of bipartisanship that would perhaps surprise the more tribe-minded supporters of lawmakers appeared. Representative Steny H. Hoyer of Maryland, the No. 2 Democrat, approached Rep. Kevin McCarthy, the California Republican who is attempting to become the next House speaker, to shake hands. That happened more than once.

A senior White House official, who spoke anonymously to describe private conversations, said that conversations with Republicans were kept light — talk of sports took the place of more contentious topics including, say, looming oversight investigations. Guests were discouraged from working the room because of protocol reasons, an attendee said, so it became hard to get a good look at who was doing what.