Trump news - live: US delays tariffs as president threatens long jail sentences for FBI 'spying' against his campaign

Donald Trump has claimed on Twitter he was “conclusively spied on” by the Obama-era Justice Department in 2016, citing a Fox News opinion poll as proof and threatening long jail sentences for those found responsible in attorney general William Barr‘s upcoming investigation into the matter, widely regarded as revenge for the Mueller report.

The president meanwhile unveiled plans to revamp US immigration at the White House on Thursday, proposing a more selective, merit-based system and English tests for asylum seekers. It has also emerged he wants his US-Mexico border wall to be painted black and lined with spikes to intimidate and deter would-be illegal entrants.

As tensions with Iran rumble on, Mr Trump is also reported to be seething in private about the perception his hawkish national security adviser, John Bolton, is dictating policy on Tehran and leading the US to the brink of a war the president says he “hopes” can be avoided.

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