"We have made it very clear that what is happening is totally illegal," Trump said. Biden spoke by phone from the presidential plane Air Force One with Gershkovich's relatives.

The Wall Street Journal reporter's family said in a statement released by Dow Jones, the parent company of the New York outlet. Russian authorities continue to deny consular access to U.S. officials, according to the White House. The State Department officially determined Monday that Gerskkovich was "arbitrarily detained by Russia"