President Barack Obama has ordered the expulsion of 35 Russian diplomats in response to multiple hacking incidents that took place during the recent US Presidential Election. The White House labeled 35 diplomats as intelligence operatives and expects them to leave the US in 72 hours. A joint report released by the FBI and DHS accuses Russia of tampering with the US election process, albeit not hacking the actual voting machines. The report also contains recently declassified information that details the mode of operation and tools used by two Russian cyber-espionage groups APT28 and APT29.
Source: https://www.bleepingcomputer.com/news/government/us-ejects-35-russian-diplomats-in-response-to-election-hacks/