There is not much support for anti-democratic forces in Pakistan among either the American people or the American deep state except for a few personal beneficiaries in Trump's orbit. So, there is no political capital that will be spent in passing a Bill that enjoys wide bipartisan support.
Also, you seem to be woefully ignorant of the law. The founding fathers intended Congress to be the primary branch of the government. That is why Congress' powers are listed in Article I and the President's in Article II. Once a Bill becomes an Act, it is the law of the land that the President is bound by. His consent only matters before the Bill become an Act. He has a veto power, but Congress can override it with a two-thirds majority, which a legislation with bipartisan support can easily garner.
After that, trying to undermine the will of Congress is the definition of "high crimes and misdemeanors ".