Donald Trump has accused Barack Obama of tapping his phone during the US election.
The president tweeted that his predecessor had his “wires tapped in Trump Tower just before the victory. Nothing found. This is McCarthyism!”
He also says a good lawyer could “make a great case” out of the allegation.
The president compared the alleged surveillance of his communications to Watergate, the scandal in the early 1970s that brought down Republican president Richard Nixon.