The whole thing is so stupid it is unreal. The word "abortion" does not appear one time in the Constitution. Anyone remember the tenth amendment from civics class?
"The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."
This means abortion should be regulated by the States. The issue is where it should be, in the hands of the voters. Donald Trump and the federal government have no say in the issue. The way people from the left go after Trump just shows you how truly stupid they are.