Donald Trump is full of beans (that's why he doesn't smell too) when tells people he can renegotiate trade deals and add a Contitutional amenment within his first hundred days

Donald Trump is full of beans (that's why he does smell so good) when tells people that he can renegotiate deals and put forth Constitutional Amendment for term limits to Congress within his first hundred days.
First of all trade deals aren't easy, just lo0ok at Canadian deal with the EU. I think took 7 years of negotiations and at the end of day it was veto by one half of country southern  Belgium.
Constitutional Amendments are very hard to pass: the common way is two-thirds of Congress ( both houses) must pass then it goes the states where three quarters of states must approve.The other way is two-thirds of state petitions for a convention.