The "American Tabloid" trilogy by Elroy goes over the Kennedy Assassinations (JF and RF) and all the associated history. Well worth getting into (even if the "telegram style" in the second book ramps up to 11 and ends up having some long patches where it's almost unreadable).
"Psalms For The End Of The World" by Cole Haddon is a mad read best sold by the blurb:
"It's 1962 and physics student Grace Pulansky believes she has met the man of her dreams, Robert Jones, while serving up slices of pecan pie at the local diner. But then the FBI shows up, with their fedoras and off-the-rack business suits, and accuses him of being a bomb-planting mass-murderer.
Finding herself on the run with Jones across America's Southwest, the discoveries awaiting Gracie will undermine everything she knows about the universe. Her story will reveal how scores of lives - an identity-swapping rock star, a mourning lover in ancient China, Nazi hunters in pursuit of a terrible secret, a crazed artist in pre-revolutionary France, an astronaut struggling with a turbulent interplanetary future, and many more - are interconnected across space and time by love, grief, and quantum entanglement."
Also, "The Oracle Year" by Charles Soule is interesting:
"Knowledge is power. So when an unassuming Manhattan bassist named Will Dando awakens from a dream one morning with 108 predictions about the future in his head, he rapidly finds himself the most powerful man in the world. Protecting his anonymity by calling himself the Oracle, he sets up a heavily guarded Web site with the help of his friend Hamza to selectively announce his revelations. In no time, global corporations are offering him millions for exclusive access, eager to profit from his prophecies."
Closely related is "The Future is Yours" by Dan Frey:
If you had the chance to look one year into the future, would you?
For Ben Boyce and Adhi Chaudry, the answer is unequivocally yes. And they’re betting everything that you’ll say yes, too. Welcome to The Future: a computer that connects to the internet one year from now, so you can see who you’ll be dating, where you’ll be working, even whether or not you’ll be alive in the year to come. By forming a startup to deliver this revolutionary technology to the world, Ben and Adhi have made their wildest, most impossible dream a reality. Once Silicon Valley outsiders, they’re now its hottest commodity.
The device can predict everything perfectly—from stock market spikes and sports scores to political scandals and corporate takeovers—allowing them to chase down success and fame while staying one step ahead of the competition. But the future their device foretells is not the bright one they imagined.
"Adjustment Day" by Chuck Palahniuk is another interesting read that is in that sort of area:
People pass the word only to those they trust most: Adjustment Day is coming. They’ve been reading a mysterious blue-black book and memorising its directives. They are ready for the reckoning.
In this ingeniously comic work, Chuck Palahniuk’s first novel in four years, he does what he does best: skewer the absurdities in our society. Smug, geriatric politicians hatch a nasty fate for the burgeoning population of young males; working-class men dream of burying the elites; and professors propound theories that offer students only the bleakest future. When it arrives, Adjustment Day inaugurates a new, disunited states.