So Donald Trump claimed over the weekend his predecessor Barack Obama had ordered his offices at Trump Tower in New York City to be wiretapped.
Of course, this allegation has sent shockwaves across the American political arena.
The FBI director, James Comey, has reported asked the US Justice Department to deny the allegations, while a former official in the Obama administration has denied the claims.
It's certainly a shocking thing to have said. But is it the most shocking claim ever made by an occupant of the White House?
Well you can decide for yourself, because we've rounded
Check out the gallery above.