Would depend a lot on what other events did & didn't happen between 1776 & 1936.
Did the British American colonies revolt? If they did, were they successful? If "no"; is the East coast still in British hands? If "yes"; what happened to the USA? Why has
it not expanded?
Is Britain still an expansionist empire? If so, say goodbye the the Spanish territories in the NW Americas.
Did WW1 happen? If not, what
other wars happened, instead?
What of the French Empire? What happened to their acquisition of/hold on the "Louisiana Territories"?
Are any other empires in a position to take advantage of the Spanish Civil War?
Do Soviet Russia or Nazi Germany exist? Will they ever?
So many questions!