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

Russian Foreign Minister Sergei Lavrov discussed the war in Ukraine with U.S. Secretary of State Marco Rubio Sunday, Russian state media Interfax reported.

"Lavrov and Rubio exchanged views on various initiatives concerning the political settlement of the Ukrainian crisis, including plans to resume direct Russian-Ukrainian talks in Istanbul on June 2,” the Russian Foreign Ministry said in a statement about the call between the two leaders, Interfax reported.

Rubio also "expressed sincere condolences in connection with the victims among civilians as a result of explosions of railway infrastructure in the Bryansk and Kursk regions on June 1,” the readout from the Russian Foreign Ministry said, according to Interfax.

"On the Russian side, it was emphasized that the competent authorities are conducting the most thorough investigation, and the results will be published in the very near future. The perpetrators will definitely be identified and will inevitably suffer the deserved punishment," the Russian Foreign Ministry said.

State Department spokesperson Tammy Bruce said the call came at Russia’s request and that Rubio “reiterated President Trump’s call for continued direct talks between Russia and Ukraine to achieve a lasting peace.”

-ABC News’ Ellie Kaufman