US President Trump has endorsed calls by intel chief Tulsi Gabbard to prosecute Barack Obama and top officials over allegations they orchestrated a ’treasonous conspiracy’ during the 2016 election.

Tulsi Gabbard has alleged that Obama's administration manufactured intelligence about Russian interference in the 2016 ...

Obama and sometimes Clinton aim at Trump. Trump goes after Biden and Obama. It’s a rare battle of the presidents.

The video comes after the Trump administration accused Obama of election fraud in 2016, with the US President backing calls for his prosecution.