From Ted McLaughlin at jobsanger:
Throughout his campaign, Donald Trump promised his supporters that he would make repealing the Affordable Care Act (Obamacare) a priority once elected. And his GOP cohorts in Congress are already preparing bills to do just that. It is doubtful they could pull off a complete repeal of Obamacare, because the Democrats have enough votes in the Senate to sustain a filibuster. But it is possible that the Republicans could use budget reconciliation to defund the health care program, and that would effectively kill it.
But if they do that, they will not be fulfilling the wishes of a substantial majority of Americans.