The decision was taken after Republican lobbyists were short of votes and Republican party decided to postpone the voting for this bill.
Republican House Speaker Paul Ryan said: "I will not sugarcoat this. This is a disappointing day for us. Doing big things is hard."
"Obamacare's the law of the land," Ryan added. "We're going to be living with Obamacare for the foreseeable future."
"Perhaps the best thing that could happen is exactly what happened today, because we'll end up with a truly great healthcare bill in the future after this mess known as Obamacare explodes," Trump noted, who was earlier stressing that "Obamacare is imploding" promising to pass the bill in the end.