GOP subpoenas firms that ran Clinton's private email server

WASHINGTON (AP) — Congressional Republicans have issued subpoenas to three technology companies that either made or serviced the private email server that Hillary Clinton used while she was secretary of state.

The subpoenas were issued Monday by the Republican chairmen of the Senate Homeland Security Committee and the House Science, Space and Technology Committee.

Republicans are stepping up their attacks on the Democratic presidential nominee's handling of sensitive government information that flowed through the server located in the basement of her New York home. The FBI recently closed its probe into the issue without recommending criminal charges.

Democrats accuse Republicans of wasting millions on fruitless investigations of Clinton, following the GOP's failure to uncover evidence supporting their claims Clinton was negligent in the deadly 2012 attack on a U.S. diplomatic facility in Benghazi, Libya.