The billionaire, an outspoken critic of Obama, tweeted: “We can't let this happen. We should march on Washington and stop this travesty. Our nation is totally divided!”
He then tweeted: “Lets fight like hell and stop this great and disgusting injustice! The world is laughing at us.”
“This election is a total sham and a travesty. We are not a democracy! Our country is now in serious and unprecedented trouble...like never before.”
He finished his rant by adding: “Our nation is a once great nation divided! The electoral college is a disaster for a democracy.”
The tweets prompted response from other figures in the US media.
Actor Alec Baldwin said: “You trust the voters when they choose The Apprentice. But not now?"