Trump admin live updates: Trump says Musk will 'pay the consequences' if he funds Democrats

White House press secretary Karoline Leavitt was asked on Monday what President Donald Trump's reaction was to Ukraine's surprise drone operation over the weekend on Russian military airfields.

"The reaction is, this war needs to come to an end, and this war has been brutal from both sides," she said. "Too many people have died, and the president wants this war to end at the negotiating table, and he's made that very clear to both leaders, both publicly and privately."

Leavitt was asked about Trump's reaction to the latest talks between Russia and Ukraine in Istanbul, Turkey, but she sidestepped, saying she would let any response come from the president.

White House press secretary Karoline Leavitt, taking some questions from reporters on Monday, said it is "likely" that President Donald Trump will speak with Chinese President Xi Jinping this week.

"I can confirm that the two leaders will likely talk this week," Leavitt said. "And as always, when there are foreign leader calls, we will provide a readout of those calls."

White House National Economic Council Director Kevin Hassett, during an appearance on ABC's "This Week" on Sunday, had said the expectation was for Trump and China's Xi to talk this week but did not provide a specific date.

Trump has accused China of violating a deal negotiated by top officials in Geneva last month to roll back high tariff rates for 90 days. Beijing pushed back on his claims on Monday, countering that the U.S. is the one provoking "new economic and trade frictions."

In a now familiar plea, the Trump administration is asking the Supreme Court to lift a district court's nationwide injunction against sweeping plans to reduce the federal workforce and overhaul federal agencies.

The lower court's order has effectively frozen efforts at 19 agencies and 11 Cabinet departments from implementing President Donald Trump's executive order to lay off tens of thousands of workers.

"The Constitution does not erect a presumption against presidential control of agency staffing, and the President does not need special permission from Congress to exercise core Article II powers," Solicitor General D. John Sauer argued in a filing to the justices.

The case, from the Northern District of California, was brought by a group of federal employee unions, nonprofits and local governments, who alleged only Congress could lawfully reorganize the structure of federal bureaucracy. The high court has asked for a response from the plaintiffs by next Monday, June 9.

-ABC News' Devin Dwyer

President Donald Trump said on social media that if the courts rule against his tariffs, it will empower other countries to impose retaliatory tariffs on the United States, leading to economic damage.

Such a ruling "would allow other Countries to hold our Nation hostage with their anti-American Tariffs that they would use against us," Trump said in a post on his Truth Social site. "This would mean the Economic ruination of the United States of America!"

-ABC News’ Kelsey Walsh