But the plan already faced all kinds of hurdles — primarily in the Senate where Republicans hold a slim majority and where the ACA repeal died. The same tug-of-war that killed the Obamacare repeal, conservatives versus moderates, could happen again. Grow the deficit too much and some Republican senators may back away, cut income taxes (and not just corporate taxes) by too little and you may lose others. In either case, President Trump's political clout is likely running its own kind of deficit, fueled, in part, by his unceasing war with Senate Majority Leader Mitch McConnell. The president's defense of the alt-right and neo-Nazis hasn't exactly improved his public approval rating, recently judged the lowest of his six-month tenure (35 percent versus 55 percent disapproval, according to a Marist poll).