After several hours of silence, the president of the United States turned to Twitter to denounce the health insurance system implemented by Obama and rejected by the Republicans.
"Obamacare will explode and we will unite to build a super health law for people. Do not worry!" He wrote on the social network.
The president suffered a stiff defeat with last Friday's withdrawal of his health care reform proposal by failing to get the necessary votes to approve it.
Trump assumed the presidency promising to apply his qualities as the negotiator, acquired throughout his business career, to get the approval of his government projects.
The US president said he was "disappointed" and "a little surprised," but he avoided attacking his party's lawmakers and blamed the Democratic minority.
The Washington Post attacked the president headlong on Saturday in his editorial.
"The next time someone ensures that a business owner will run the country better than an experienced politician, remember this week," he said.
The Obamacare law, passed in 2010, has extended health coverage to millions of Americans but faces funding problems.
The reform proposed by the Republicans threatened to leave out of the health system about 24 million people by 2026.
- "Campaigning is easy" -
Trump also secured on Friday that he will turn the page and focus on his next project: a tax reform that would lead to a reduction of taxes.
"I would say that we are going to move fast, very fast, in the sense of tax cuts and tax reform," he told reporters.
The president went on Saturday to his golf club in Virginia, near Washington, where he plans to meet with advisers.
Although he wanted to change the subject as fast as possible, the failure of health care reform was the second time Trump was forced to retreat on a major bill in his nine weeks in office, following the judicial blockade of his immigration decrees.
"We learned things about very obscure rules, both in the Senate and in the House," he acknowledged on Friday. "For me, it has certainly been an interesting experience."
After these statements, the opponents were firm in criticism.
The New York Times, for example, denounced the rashness of the Republicans, who "sent out a parody of the law without going through the painstaking process of hearing and building alliances."
"Friday's result is good for the country" because it keeps Obamacare, "but it's humiliating for Republican leaders," he said. "For Trump, it's a pretty brutal reminder that campaigning is the easy part."