WASHINGTON — President Trump said Monday he will move up the deadline for Russian President Vladimir Putin to stop his invasion of Ukraine from its original 50 days — one day after telling The Post’s Miranda Devine “there’s no reason to wait that long.”

“I’m going to make a new deadline of about 10 to 12 days from today,” Trump told reporters at his Turnberry club in Scotland while meeting with UK Prime Minister Keir Starmer.

Trump, 79, originally gave Putin 50 days from July 14 to bring the invasion of Russia’s western neighbor to a close and work out a peace agreement or face additional economic punishment. 

Donald Trump speaks during a meeting with President of the European Commission Ursula von der Leyen at Trump Turnberry golf club on July 27, 2025 in Turnberry, Scotland. Getty Images

A Ukrainian rescuer works to extinguish a fire at the site of an aerial attack in Kharkiv on July 24, 2025, amid the Russian invasion in Ukraine. AFP via Getty Images

“I’m disappointed in him, I must be honest with you,” the US president told Devine of his Russian counterpart on the newest episode of “Pod Force One,” to be released Wednesday. 

“We’ve had great conversations, but it hasn’t been followed up with, you know, just some very bad things have happened. Very, very bad things have happened after we’ve had conversations.  And I’d leave and I’d say, ‘Well, I really thought we had it settled’ three or four times.”

Firefighters extinguishing a fire at a damaged building. AP

Trump said Monday he has not decided whether to impose additional sanctions on Russia or slap secondary tariffs on buyers of Russian energy — which would affect countries like China, India and Brazil — but reiterated that “we just don’t see any progress being made” toward ending Europe’s bloodiest conflict since World War II. 

Burned-out home improvement store in Kamianske, Ukraine, after a missile attack. Mykola Miakshykov/Ukrinform/INSTARimages

“I’m not so interested in talking anymore,” he added as Starmer looked on.

Russian President Vladimir Putin, left, speaks with Vladimir Vladimirov, the governor of Stavropol Territory, during their meeting at the Kremlin in Moscow, Russia, Monday, July 28, 2025. AP

Ukrainian President Volodymyr Zelensky has been open to meeting Putin to negotiate the end of the 41-month-old war, but the Kremlin declined to send the Russian president to meet for direct talks, choosing to engage with lower staff first.

Zelensky told The Post in a recent one-on-one sitdown that he was “very grateful” that Trump supports sanctions, but he worried the 50-day deadline would cost too many lives.

Bomb damaged buildings in Kharkiv, Ukraine. Titov Yevhen/ABACA/Shutterstock

“Fifty days, for us, is just — every day is scary,” Zelensky said on July 17 in an interview in Kyiv.

“Putin has wasted President Trump’s time,” the Ukrainian leader added. “I would very much like to see the United States, the Congress and the president put some pressure on this situation with sanctions and so the sooner, the faster it can be done, the better.”

A Ukrainian rescuer works to extinguish a fire at the site of an aerial attack in Kharkiv. AFP via Getty Images

The three Ukraine-Russia delegation meetings held in Turkey in the past few months have not successfully established a cease-fire, but have led to prisoner swaps.

The last meeting, held on July 23, lasted for less than an hour. The two sides didn’t come close to a cease-fire, despite Trump’s 50-day warning for Russia.

Firefighter extinguishing a fire in a damaged building in Kropyvnytskyi, Ukraine. via REUTERS

Meanwhile, Trump has phoned Putin directly and has tried to be a mediator in the war between him and Zelensky. He’s said that Putin tells him he wants to end the war, only to go on directing missile strikes on Ukraine.

“We have wonderful conversations,” Trump told Devine Sunday. “And then I go home, I turn on the news, and I see that Kyiv has just been bombed. It’s just been ripped into. You can’t do that stuff. I mean, I said, ‘Wait a minute. I just spoke to him four hours ago, and now all of a sudden they’re sending bombs into Kyiv and other places.’”