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Politicians in Washington and the reporters who cover them have an often adversarial relationship.

But on the last Saturday in April, they gather for an irreverent celebration of press freedom and the First Amendment at the Washington Hilton Hotel: The White House Correspondents’ Association dinner.

Hosted by the association, an organization that helps ensure access for media outlets covering the presidency, the dinner attracts Hollywood stars; politicians from both parties; and representatives of more than 100 networks, newspapers, magazines and wire services.

While The Times will have two reporters in the ballroom covering the event, the company no longer buys seats at the party, said Richard W. Stevenson, the Washington bureau chief. The decision goes back almost two decades; the last dinner The Times attended as an organization was in 2007.

“We made a judgment back then that the event had become too celebrity-focused and was undercutting our need to demonstrate to readers that we always seek to maintain a proper distance from the people we cover, many of whom attend as guests,” he said.

It’s a decision, he added, that “we have stuck by through both Republican and Democratic administrations, although we support the work of the White House Correspondents’ Association.”

Susan Wessling, The Times’s Standards editor, said the policy is a product of the organization’s desire to maintain editorial independence.

“We don’t want to leave readers with any questions about our independence and credibility by seeming to be overly friendly with people whose words and actions we need to report on,” she said.

The celebrity mentalist Oz Pearlman is headlining the evening, in lieu of the usual comedy set by the likes of Stephen Colbert and Hasan Minhaj, but all eyes will be on President Trump, who will make his first appearance at the dinner as president.

Mr. Trump has boycotted the event since 2011, when he was the butt of punchlines delivered by President Barack Obama and the talk show host Seth Meyers mocking his hair, his reality TV show and his preoccupation with the “birther” movement.

Last month, though, Mr. Trump, who has a contentious relationship with the media, announced his intention to attend this year’s dinner, where he will speak to a room full of the same reporters he often derides as “enemies of the people.”

Times reporters will be there to document the highs, the lows and the reactions in the room. A reporter for the Styles desk has also been assigned to cover the robust roster of after-parties around Washington.

Some off-duty reporters from The Times will also be present at this late-night circuit, though everyone remains cognizant of their roles, said Patrick Healy, The Times’s assistant managing editor for Standards and Trust.

“If they’re reporting, there’s a notebook or recorder out as usual,” he said. “If they’re not, they’re pros who know they’re always identifiable as Times journalists.”

For most of The Times’s reporters and editors, though, the evening will be experienced from home.

“The rest of us will be able to follow the coverage,” Mr. Stevenson said, “without having to don our tuxes or gowns.”

Lululemon, the yoga pants and athletic clothing company, has hired a former executive from a rival, Nike, as its new chief executive.

Heidi O’Neill, who spent more than 25 years at Nike, will take the reins and join Lululemon’s board of directors on Sept. 8, the company announced on Wednesday.

The leadership change is happening during a tumultuous time for Lululemon, which had grown to $11 billion in revenue by persuading shoppers to ditch their jeans and slacks for stretchy leggings. But lately, sales have declined in North America amid intense competition and shifting fashion trends, with consumers favoring looser styles rather than the form-fitting silhouettes for which Lululemon is best known.

“As I step into the C.E.O. role in September, my job will be to build on that foundation — to accelerate product breakthroughs, deepen the brand’s cultural relevance, and unlock growth in markets around the world,” Ms. O’Neill, 61, said in a statement.

Lululemon, based in Vancouver, British Columbia, has also been entangled in a corporate power struggle over the company’s future. Its billionaire founder, Chip Wilson, has feuded with the board, nominated independent directors and criticized executives.

Lululemon’s previous chief executive, Calvin McDonald, stepped down at the end of January as pressure mounted from Mr. Wilson and some investors. One activist investor, Elliott Investment Management, had pushed its own chief executive candidate, who was not selected.

The interim co-chiefs, Meghan Frank and André Maestrini, will lead the company until Ms. O’Neill’s arrival, when they are expected to return to other senior roles. The pair had outlined a plan to revive sales at Lululemon, promising to invest in stores, save more money and speed up product development.

“We start the year with a real plan, with real strategies,” Mr. Maestrini said in an interview this year. “We make sure decisions are made fast.”

Lululemon said last month that it would add Chip Bergh, the former chief executive of Levi Strauss, to its board to replace David Mussafer, the chairman of the private equity firm Advent International, whom Mr. Wilson had sought to remove.

Ms. O’Neill climbed the organizational chart at Nike for decades, working across divisions including consumer sports, product innovation and brand marketing, and was most recently its president of consumer, product and brand. She left Nike last year amid a shake-up of senior management that led to the elimination of her role.

Analysts said Ms. O’Neill would be expected to find ways to energize Lululemon’s business and reset the company’s culture in order to improve performance.

“O’Neill is her own person who will come with an agenda of change,” said Neil Saunders, the managing director of GlobalData, a data analytics and consulting company. “The task ahead is a significant one, but it can be undertaken from a position of relative stability.”