Fifth American Revolution

The Constitution, regular Elections, two Parties, Checks and Balances, our brilliant Founding Fathers created this Nation through a Revolution to end all Revolutions, but did they?
What about America's westward expansion during the early nineteenth century? Were its excesses and the manner how it was achieved within what the Constitution envisioned?
The Civil War - it was as near a Revolution as it could get, but it failed to split or change the governance of America.
What about exceeding Constitutional limits through the 'New Deal' and the 'Great Society' (from Wilson, Roosevelt to Johnson)?
What about the Republican's claim Kennedy stole his Election, just as the Democrats claim 'W' (G.W. Bush) stole his as well.
So we never ever had a Coup d'tat or another Revolution in America?
This time it was different! A President was shot and seriously wounded. Opportunistically a cabal took over his Administration. Ignoring Constitutional provisions of succession, they kept him sequestered at a secret, CIA operated location; then with Unions' help stole a Congressional Election - a Coup d'tat, if there ever was one!
A President was disposed from Office and prevented to resume his responsibility once he had recovered from his wounds. This held until a group of Patriots located and freed the President through an alliance which made friends enemies and enemies friends; he returned and battled to regain his elected position. Yes, they even fought a battle on the White House Grounds, roiling the massed population. Personal emotions of Love, Hate, Betrayals, Loyalties and Redemption, even Sacrifice and Death etched the personalities into the reader's mind.
It was America's Fifth Revolution!
From massive domestic protests and clandestine foreign military adventures, turmoil spread across the World, from the Middle East to Russia and to the verge of War with China. A Nation and its economy were paralyzed with fear; would the American President regain control over his Administration and restore the citizen's confidence in the Nation? Could America regain its fortitude, influence and power in time to avert a World calamity?
A Novel
Could these events happen, are we there already or is it what the future holds? Was or is it 'Orson Well's: War of the Worlds' all over again?