Donald Trump has claimed Barack Obama had Trump Tower's 'wires tapped'.
The allegation was made in a series of tweets.
"Terrible!" the President said. "Just found out that Obama had my 'wires tapped' in Trump Tower just before the victory. Nothing found. This is McCarthyism!"
Soon after he added: "Is it legal for a sitting President to be "wire tapping" a race for president prior to an election? Turned down by court earlier. A new low!
"I'd bet a good lawyer could make a great case out of the fact that President Obama was tapping my phones in October, just prior to election!"
Mr Trump also suggested that Mr Obama was "sick".
The President said: "How low has President Obama gone to tapp [sic] my phones during the very sacred election process. This is Nixon/Watergate. Bad (or sick) guy!"
However, despite the severity of the claim, Mr Trump did not immediately provide evidence that Mr Obama was responsible for surveillance on his property.
The President has a long history of making unfounded and sometimes bizarre claims and it is not the first time he has used them to attack his predecessor.
Mr Trump has been a strong proponent of the 'birther' conspiracy theory, which held that Mr Obama was not born in the US.
Using anonymous sources - which he has criticised the press for utilising - Mr Trump has at least five times alleged that Mr Obama was not born in the US and that his birth certificate was a "fraud".
The tirade came at end of a week in which Mr Trump had been praised widely for acting in a more Presidential fashion, during his first address to Congress.
Terrible! Just found out that Obama had my "wires tapped" in Trump Tower just before the victory. Nothing found. This is McCarthyism!
— Donald J. Trump (@realDonaldTrump) 4 March 2017
Is it legal for a sitting President to be "wire tapping" a race for president prior to an election? Turned down by court earlier. A NEW LOW!
— Donald J. Trump (@realDonaldTrump) 4 March 2017
I'd bet a good lawyer could make a great case out of the fact that President Obama was tapping my phones in October, just prior to Election!
— Donald J. Trump (@realDonaldTrump) 4 March 2017
How low has President Obama gone to tapp my phones during the very sacred election process. This is Nixon/Watergate. Bad (or sick) guy!
— Donald J. Trump (@realDonaldTrump) 4 March 2017
