Killer Amendment: A Thriller by award-winning and bestselling author Michael Fedor

“⭐️ ⭐️ ⭐️ ⭐️ ⭐️”

"The presidency was supposed to be different this time."

Award-Winning Political Thriller | Book 4 of the Bull Moose Series

Killer Amendment: A Thriller

Bull Moose Series | Book 4

About the Book

The presidency was supposed to be different this time.

Ten months into the Piper administration, President Jackson Piper is doing something Washington hasn't seen in generations — leading with conviction. His landmark New Bill of Rights, ten constitutional amendments designed to dismantle executive overreach, crush political corruption, and restore dignity to the Oval Office, is headed to the Senate floor.

But Washington doesn't change without a fight.

Piper must navigate a Congress steeped in self-interest and moral compromise, while keeping his own team from surrendering their ideals to the grinding machinery of governing a fractured nation. It's a battle he expected. What he didn't expect was this:

One by one, U.S. Senators are vanishing — or dying. One per day. For fourteen days.

As panic grips Capitol Hill and the amendments' fate hangs in the balance, Piper and his Bull Moose allies race to uncover the truth behind a sophisticated conspiracy engineered by a powerful conservative Senator determined to hold onto his crumbling empire at any cost.

Then, with one unexpected act, the game changes entirely.

With his agenda on the line and former colleagues in the crosshairs, Piper must move fast. Because someone is determined to end the Piper presidency before it ever truly begins.

Perfect for fans of The President is Missing, Vince Flynn, and The Diplomat on Netflix.


Killer Amendment — the story of one man's fight to save democracy from the inside out.

Where to PreOrder on Other Sites: Releases September 8, 2026

“In a time when democracy feels fragile, the Bull Moose Series is a razor-sharp political thriller saga that reminds us of the stakes. Michael Fedor writes with the urgency of a patriot and the insights of a seasoned political strategist. These books will keep you turning pages—and thinking hard—until the very last word.”

Patrick Murphy
Former Congressman & 32nd Under Secretary of the Army

About the Book

Book 4 signifies a turning of the page of the Bull Moose Series. Book 4 could almost be called Jackson Piper Book 1. That is because the adventures are now more episodic in the Bull Moose universe. Readers need not have read Books 0-3 to enjoy the thrill of the story or appreciate the dynamics between these stunning characters. 

Book 4 serves as the perfect entry point for a reader looking for something brand new in the political thriller landscape that draws heavily on the stormy present and our plausible trajectory as a nation for inspiration.

Set in the year 2045, Killer Amendment is as much a story about how difficult it is to amend the U.S. Constitution as it is about the lengths men and women will go to maintain power. 

As always, Jackson Piper is the tip of the noble spear, seeking to choose a more just path than presidents before him. But the fissures in his tentative new party are forming, even in his own inner circle, about how long they can maintain the moral high ground before they are outflanked and outsmarted by their more pragmatic enemies.

Killer Amendment is a thrill-ride just as Tree of Liberty (Bull Moose 2) and The Nine-Hour President (Bull Moose 3), but in this book, Fedor goes back to his roots in The Senate Deception (Bull Moose 0) to explore the challenging dynamics of the American system of checks and balances.

What Readers are Saying About the Bull Moose Series

Fedor’s writing is sharp, and his knowledge of the political landscape imbues [each] story with authenticity and realism.

Nancy Jacob

⭐️⭐️⭐️⭐️⭐️ 

MUST READ!

[Bull Moose is] a great read for those who enjoy drama, suspense, twisty plots, and interesting characters...I could not put it down.

Linda Besser

What a fantastic book. I am an avid reader of political thrillers and other political and intelligence thrillers, and Bull Moose stands out as very, very comparable to other nationally known authors. This was very well done.

Dwight U

If one is interested in the lengths a corrupt politician will go to in order to deceive voters during the year of a presidential election, then this is the book for you.

A must read Now! ⭐️⭐️⭐️⭐️⭐️

Roberta

You get to love the characters like Piper and Ron, and want them to succeed in their quest to show the US public that politics can be done differently! Already bought TREE of LIBERTY!

Dona N.

"A must-read for anyone who enjoys gripping political thrillers that challenge our understanding of power and integrity."

Alan R. Warren
Bestselling Author of "The Killing Game" & NBC Radio Host

Out Now

The Senate Deception Bull Moose political thriller book political suspense book political fiction book

The Senate Deception: A Thriller (Book 0)

A rising U.S. Senator becomes the center of a power play to upend Congress and presidential ambitions. As alliances shift, all is not as it seems. Jackson Piper must navigate betrayal, ambition, and a conspiracy that leads to the deadliest Senate debate in history. His decision could make him a hero...or a target. 

What It Takes to Kill a Bull Moose: A Political Thriller

What It Takes to Kill a Bull Moose: A Thriller (Book 1)

When disgraced former U.S. Senator Jackson Piper uncovers a presidential plan to rig his own reelection to stay in power, he's pulled back into a ruthless political war. With a rising AI threat and a nation on edge, Piper must choose: return to silence and safety or risk everything to save America.

Tree of Liberty: A Political Thriller

Tree of Liberty: A Thriller (Book 2)

When the president dies suddenly, a usurper seizes power, sending America spiraling into a Constitutional crisis. Hunted as enemies of the state, Jackson Piper and Valerie Lawrence race to stop a stolen election and save the republic before Inauguration Day. Freedom's last stand begins here.

The Nine-Hour President: A Thriller

The Nine-Hour President: A Thriller (Book 3)

In a nation on the brink, a president has nine hours to avert collapse. As conspiracies ignite and loyalties fracture, an unlikely President steps in to take the wheel, racing to find the truth and prevent calamity before America loses itself forever. Every second counts in this explosive third book in the Bull Moose series.

Author Michael Fedor

Michael Fedor

Award-winning thriller author who is the voice of political thrillers for the modern American moment #bullmoosethrillers

Copyright © 2026 Divi. All Rights Reserved.

Book cover image of "The Senate Deception" by Michael Fedor, featuring a political theme with a mask.

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