Topic: Republican primaries

Joe Walsh; Jeff Flake; Mark Sanford; John Kasich (AP/Getty)

Five Republicans could challenge Trump

Igor Derysh
Donald Trump; Jeff Flake; Bob Corker; John Kasich (Getty/AP/Salon)

GOP may cancel some 2020 primaries

Igor Derysh
Roy Moore (AP/Brynn Anderson)

Let's go crazy: Roy Moore and the GOP

Heather Digby Parton
(Screengrab via YouTube)

Matthew Rozsa

Here's your GOP debate lineup

Salon Staff
(MSNBC screenshot)

Maddow demystifies Trump

Sophia Tesfaye
(AP/Reuters/LM Otero/David Becker/Jim Urquhart/Photo montage by Salon)

Who's worst on climate change?

Lindsay Abrams
Donald Trump (Reuters/Brendan Mcdermid)

"The herpes of politics"

Sophia Tesfaye
(AP/Jim Cole/Phelan M. Ebenhack/M. Spencer Green/Photo montage by Salon)

Koch brothers' guide to 2016

Conor Lynch
Carly Fiorina (Reuters/Mike Theiler)

Carly Fiorina's '16 pipe dream

Heather Digby Parton