They'll notice but as long as he makes sure that their campaign funds are well taken-care-of, it won't matter one bit.
Sure, the USA's national debt is only $26.51 trillion. Reduce taxes across the board. That way infrastructure damage won't matter nor will climate change action because the US government will start defaulting on the national debt.
Here's a better idea. Don't let companies like Boeing, Amazon, Northrop, Lockheed, Raytheon, Wal-Mart and General Dynamics go entire years without paying any corporate taxes. Get rid of capital gains loopholes and tax them as income because that's what they are. Then MAYBE the US economy won't completely collapse under the weight of the national debt's interest payments.
At this point, cutting taxes will just guarantee that the US government ends up defaulting on its loans or is forced to inflate its currency to the point where it may be worth only 10¢. If it does that of course, it will no longer be used as the international currency standard and it's most likely that the Euro will be adopted. That will cause the USD to fall even further because without the gold-standard backing it, the USD is only as valuable as people think that it is. The USD as a currency will collapse and take the US economy with it.
What a great idea.