"The answer partly lies in the fundamentals of the government's budget when it comes to big-ticket expenditures that the White House can't fully control or massive changes to the way the U.S. pays for aging Americans' retirements and medical care.
The rest of the answer is politics. The conservative base that elected Mr. Trump and the Republican majorities in Congress may not support cutting the other biggest share of federal spending, the operations of the U.S. military and caring for veterans."
