Updated 9:17 a.m. ET Sunday with White House press secretary statement
In a string of tweets posted early Saturday morning, President Trump let loose a barrage of accusations at his predecessor. He alleged that former President Obama had his "wires tapped" in Trump Tower before Election Day last year, accusing Obama of "McCarthyism" and being a "bad (or sick) guy."
Trump, who is under significant scrutiny for his administration's contacts with Russia before he took office, offered no evidence to support his claims Saturday morning.