Trump explodes in rambling tirade against Obama and the Fed bank: 'Where did I find this guy Jerome?'

US president has made repeated false claims about his predecessor in recent weeks

Donald Trump has attacked his predecessor Barack Obama and the chair of the federal reserve in a series of rambling early morning tweets.

The US president first took umbrage with an Obama-era programme allowing protections for some young undocumented immigrants, called the Deferred Action for Childhood Arrivals (Daca)

"President Obama never had the legal right to sign DACA, and he indicated so at the time of signing. But In any event, how can he have the right to sign and I don’t have the right to 'unsigned.'" Mr Trump said on Friday.

"Totally illegal document which would actually give the President new powers."

He later added: "DACA will be going before the Supreme Court. It is a document that even President Obama didn’t feel he had the legal right to sign - he signed it anyway!

"Rest assured that if the [Supreme Court] does what all say it must, based on the law, a bipartisan deal will be made to the benefit of all!"

Mr Trump in 2017 announced plans to phase out Daca as part of the White House's hard-line immigration stance, but the move was put on hold by several courts. The Supreme Court is scheduled hear arguments about the programme's legality in November.

There is no evidence Mr Obama ever suggested he lacked the authority to issue Daca.

According to CNN, Mr Obama was the only individual to be one of the top 10 subjects Mr Trump has repeatedly made false claims about this summer.

Of Mr Trump's 328 mis-truths over a six-week period in July and August, seven per cent of those were about the former president.

Mr Trump next moved onto one of the favourite targets of his ire, federal reserve chair Jerome Powell, who the president believes is substantially to blame for a slowing economy.

"The Fed should lower rates. They were WAY too early to raise, and Way too late to cut - and big dose quantitative tightening didn’t exactly help either. Where did I find this guy Jerome? Oh well, you can’t win them all!" he tweeted.

The president, who before taking office said he would "hire the best people", personally nominated Mr Powell to the position atop the central banking system of America.

Mr Trump continued by issuing a series of supportive messages to allies, including recently departed White House press secretary Sarah Sanders following an appearance on the president's favourite morning news show Fox & Friends.

He also praised a new book by Fox News host Jeanine Pirro, who was earlier this year issued a rare reprimand by the network for what was widely perceived as an anti-Muslim attack against Democratic congresswoman Ilhan Omar.