This was announced by the US Presidential Special Envoy for Hostage Affairs Roger Carstens.

“We are trying to bring together what the United States is able to offer. And we hope that we can find something that interests the Russians too - to such an extent that they will be ready to return Paul Whelan and Evan Gershkovich to us,” TASS quotes him.

Earlier, US Presidential Assistant for National Security Jake Sullivan said that the American administration is in contact with the Russian authorities on a possible prisoner exchange.