U.S. spending bill to provide $380 million for election cyber security - sources

The U.S. Capitol Building is lit at sunset in Washington, U.S., December 20, 2016. REUTERS/Joshua Roberts - RC1B9664A8E0

WASHINGTON (Reuters) - Lawmakers have included nearly $400 million (284.39 million pounds) in a massive federal government spending bill to help safeguard U.S. voting systems from cyber attacks, three sources familiar with negotiations said on Wednesday.

The spending package, expected to be publicly unveiled on Wednesday, includes $380 million to provide states with grants that would help them purchase more secure voting machines and improve election cyber security training.