The Space Viking
Banned
Get Alexander Hamilton as President, preferably after Madison goes. Getting him to not die in the duel is simple enough; just have him not miss, getting him into the White House is the hard part.
If it was possible to get Hamilton as President after John Adams, or even just after Jefferson. One way or the other it might firmly entrench the Federalist Doctrine as a major political party today.
Which sounds awesome in theory, but would probably be horrible in practice as I see them aligning with Capitalists greatly.