HALIFAX, Nova Scotia (AP) — U.S. senators critical of President Donald Trump’s approach to ending the Russia-Ukraine war said Saturday they spoke with U.S. Secretary of State Marco Rubio who told them that the peace plan Trump is pushing Kyiv to accept is a “wish list” of the Russians and not the actual U.S. plan.

The 28-point peace plan was crafted by the Trump administration and the Kremlin without Ukraine’s involvement. It acquiesces to many Russian demands that Ukrainian President Volodymyr Zelenskyy has categorically rejected on dozens of occasions, including giving up large pieces of territory. Trump says he wants Ukraine to accept the plan by late next week.

The senators earlier said Saturday it would only reward Moscow for its aggression and send a message to other leaders who have threatened their neighbors.

The senators’ opposition to the plan follows criticism from other U.S. lawmakers, including some Republicans, none of whom have the power to block it. The senators, who spoke at an international security conference in Canada, included a Democrat, an Independent and a Republican who does not plan to seek reelection next year.

“It rewards aggression. This is pure and simple. There’s no ethical, legal, moral, political justification for Russia claiming eastern Ukraine,” Independent Maine Sen. Angus King said during a panel discussion at the Halifax International Security Forum in Canada.