McCullough's "John Adams" is always good.
Also try Joseph Ellis' "Founding Brothers" and Bernard Weisberger's "America Afire" about the election of 1804.
I really liked "Founding Brothers" and have been wanting to read "1776" but have not found the time to do so yet.
I can imagine John Adams is rolling in his grave with what is going on in MA and what they can "find" in the MA Constitution... and the US Constitution.