Trump threatens to veto FISA surveillance rules citing 'Obamagate' conspiracy theory

Donald Trump has vowed to "quickly VETO" a bill to reauthorise previously lapsed US national security surveillance measures that he says Obama administration intelligence officials abused to spy on his 2016 campaign.

The House is voting on the bill and an accompanying Senate amendment on Wednesday evening after the upper chamber passed both measures last week with overwhelming bipartisan support.

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