President Trump told reporters in the Oval Office Tuesday that he heard Zelensky was visiting on Friday, "and certainly it's OK with me if he'd like to" - as cited in The Hill and other outlets.

"Without the United States and its money and its military equipment, this war would have been over in a very short period of time," Trump said in the remarks.

Apparently Zelensky finally acquiesced after the negotiating teams reached agreement on a final draft that does not include a US demand that it would have rights to $500 billion in future revenue. Details remain largely unknown at this early stage.

An American official involved the talks told Axios that "General Kellogg's meetings with Zelensky in Kyiv last Wednesday and Thursday were extremely important. Patient, persistent diplomacy can yield results."

"I hear Zelensky's coming on Friday, it's ok with me... It could be a trillion dollar deal, it could be whatever... Biden was throwing around money like it's cotton candy.

From the Oval Office presser:

Reporter: What does Ukraine get in this mineral deal?

Trump: "Military equipment… Without the United States and it's money… this war would have been over in a very short period of time."

And... "I'd like to buy minerals on Russian land too."

Update(1348ET): Ukraine has tentatively agreed to Trump's mineral rights access deal, Financial Times is reporting in breaking headline. The devil will of course be in the details, given as recently as Sunday Zelensky was openly resistant to the terms offered so far.

"Kyiv has agreed terms with Washington on a minerals deal that Ukrainian officials hope will improve relations with the Trump administration and pave the way for a long-term US security commitment," FT reports early Tuesday afternoon.

"Ukrainian officials say Kyiv is now ready to sign the agreement on jointly developing its mineral resources, including oil and gas, after the US dropped demands for a right to $500bn in potential revenue from exploiting the resources," the report continues.

But again nothing appears to be ultimately finalized, and there will yet be plenty of haggling over what exactly this will look like. Snippets of draft agreements have been leaked, but little in the way of the more controversial details.

"The minerals agreement is only part of the picture. We have heard multiple times from the US administration that it's part of a bigger picture," Olha Stefanishyna, Ukraine's deputy prime minister and justice minister who has led the negotiations, told the same publication.