US National Intelligence Director Tulsi Gabbard launched a new attack on former President Barack Obama this week, alleging that he conspired to undermine Trump’s 2016 presidential victory by using false intelligence purporting to show Russian interference in Trump’s favour.

The U.S. intelligence community in 2017 said Russia had interfered in the 2016 U.S. election and sought to hurt Clinton while trying to help Trump.

One day after President Donald Trump accused former President Barack Obama of treason over the intelligence assessment that Russia interfered in the 2016 election and sought to help Trump, Director of National Intelligence Tulsi Gabbard declassified a highly sensitive congressional report she claimed was more evidence of a “treasonous conspiracy.

GOP Sens. Lindsey Graham and John Cornyn are calling for a special counsel to investigate whether Obama was involved in undermining Trump's 2016 bid.