Trump admin live updates: Trump says Hamas will release hostage Edan Alexander

President Donald Trump announced Judge Jeanine Pirro will be appointed interim United States Attorney for the District of Columbia on Truth Social on Thursday.

Pirro has hosted the Fox News show "Justice with Judge Jeanine," and Trump noted she previously was district attorney for Westchester County, New York, and a county judge.

"During her time in office, Jeanine was a powerful crusader for victims of crime," Trump posted. "Her establishment of the Domestic Violence Bureau in her Prosecutor's Office was the first in the Nation. She excelled in all ways.

"Jeanine is incredibly well qualified for this position, and is considered one of the Top District Attorneys in the History of the State of New York. She is in a class by herself. Congratulations Jeanine!" he added.

-ABC News' Kelsey Walsh

Following the Supreme Court ruling that allowed the Pentagon to proceed with the dismissal of transgender service members while legal challenges continue, Defense Secretary Pete Hegseth has issued a memo laying out a timeline for it to begin happening.

According to the memo, transgender service members who do not voluntarily separate from active-duty military service by June 6 will be dismissed after that date and transgender service members serving in the reserve forces have until July 7 to voluntarily separate.

Sean Parnell, the chief Pentagon spokesman and senior adviser, said in a statement that Hegseth is "encouraged" by the Supreme Court's decision.

-ABC News' Luis Martinez

Ukrainian President Volodymyr Zelenskyy posted a readout of his call with President Donald Trump on his Telegram channel.

"President Trump inquired about the situation on the battlefield, and I gave him a brief update. I also informed him that Ukraine is ready for a 30-day ceasefire starting today," he posted.

"We are awaiting Russia's agreement to this proposal. I also confirmed that Ukraine is ready for negotiations in any format," Zelenskyy added.

"President Trump confirmed that he wants this war to end, is ready to help, and supports the need for a ceasefire. We agreed to maintain further contact," he added.

-ABC News' Oleksiy Pshemyskiy and Ellie Kaufman

Trump did not make a specific mention of his call with Ukrainian President Volodymyr Zelenskyy Wednesday afternoon, but he did call for a 30-day unconditional ceasefire between Russia and Ukraine in a Truth Social post.

"As President, I will stay committed to securing Peace between Russia and Ukraine, together with the Europeans, and a Lasting Peace it will be! This ceasefire must ultimately build toward a Peace Agreement. It can all be done very quickly, and I will be available on a moment’s notice if my services are needed," he wrote.

The comments come after members of the Trump administration, including Secretary of State Marco Rubio and Vice President J.D. Vance, have said Trump is running out of patience and is prepared to move on from negotiations.

-ABC News' Hannah Demissie