Bipartisan Senate Group Calls for Probe of Russian Hacking in US

The senators said the alleged Russian hacking can't become a 'partisan' issue.

"We are committed to working in this bipartisan manner, and we will seek to unify our colleagues around the goal of investigating and stopping the grave threats that cyberattacks conducted by foreign governments pose to our national security,” the statement said.

Schumer is the incoming Senate minority leader, while Reed and McCain are their parties' leaders on the Senate Armed Services Committee. Graham also serves on that panel.

President-elect Trump has questioned reports of the U.S. intelligence community's assessment that the Russian government was behind a series of hacks against U.S. political groups and institutions this year.