Trump's first answer is that he promised to repeal and replace Obamacare. He cannot do that without Congress. He could have gained momentum by providing Congress with a draft of legislation that he claimed that he had ready long ago. He promised that as soon as Tim Price was approved as HHS Secretary, the legislation would be there along with the new incumbent.
Tim Price said he needed three weeks to get the legislation ready. Trump demanded that he needed it in two weeks.
Meanwhile, the Republican House and Senate are in mortal disagreement about the new legislation.
"President Donald J. Trump continued building momentum this week toward fulfilling one of the most important promises he made to the American people: the repeal and replacement of Obamacare. After seven long years of disaster, President Trump and Republicans in Congress have begun the process of fixing America’s broken healthcare system and giving the power back to the American people."
Via The White House email
I think the majority of Americans who did not elect Donald Trump would like to have their power back. We the People would like to have Trump impeached from office for lying and cheating, and violating the Emolument Clause of the U.S. Constitution.