Trump Organization lawyer Michel Cohen hand-delivered a “peace” plan for Russia and Ukraine to former national security adviser Michael Flynn before Flynn was asked to resign, the New York Times reported on Sunday.

The plan, which involved lifting sanctions on Russia, was drafted by Cohen — a close confidante of President Donald Trump who has served as his organization’s special counsel since 2007 — and Felix Sater, a Russian-American real estate developer who has helped the Trump Organization scout deals in Russia.

Sater, a businessman formerly linked with the Mafia who has boasted of his “relationship with Trump,” told the Washington Post last May that he “handled all of the negotiations” for the Trump Organization’s dealings in Russia in the mid-2000’s.

Ukrainian lawmaker Andrii V. Artemenko, who met with Trump’s campaign team during the election, was also involved in drafting the proposal. Artemenko told the Times he had evidence of Ukrainian president Petro Poroshenko’s corruption that could lead to his ouster.