A Kremlin aide said on Monday that U.S. President Donald Trump suggested the White House as the venue for a summit with Russia’s Vladimir Putin when they discussed the idea of meeting in a telephone call last month.

Axar.az reports quoting Reuters.

Since that call, on March 20, preparations for a possible summit have not progressed because of a diplomatic row, the aide, Yuri Ushakov, said.

“When our presidents spoke on the phone, Trump proposed having the first meeting in Washington, in the White House,” Ushakov told reporters at a briefing.

“Trump called Putin last month to congratulate him on his election victory and told reporters he believed he and Putin would meet “in the not too distant future.”