Cliff Owen / AP

Tom MacArthur resigned today as the co-chair of the Tuesday Group, the moderate House GOP caucus, but will remain a member, per Politico.

The probable cause: MacArthur was the author of an amendment to the American Health Care Act that allows states to seek waivers on preexisting conditions — negotiated with the conservative Freedom Caucus — that allowed the embattled bill to narrowly pass the House. Though he said he wasn't forced to step down, he did hint to Politico that willingness to play ball with the Freedom Caucus didn't sit well with other Republican moderates:

I'm going to continue to govern the way I believe the American people need us to govern. That means we engage with the Freedom Caucus. We engage with everybody.

Go deeper

Amy Harder, author of Generate
34 mins ago - Energy & Environment

Climate change goes mainstream in presidential debate

Photo illustration: Aïda Amer/Axios. Photo: Olivier Douliery-Pool/Getty

The most notable part of Thursday’s presidential debate on climate change was the fact it was included as a topic and assumed as a fact.

The big picture: This is the first time in U.S. presidential history that climate change was a featured issue at a debate. It signals how the problem has become part of the fabric of our society. More extreme weather, like the wildfires ravaging Colorado, is pushing the topic to the front-burner.

Finally, a real debate

Photo: Morry Gash/AP

A more disciplined President Trump held back from the rowdy interruptions at tonight's debate in Nashville, while making some assertions so outlandish that Joe Biden chuckled and even closed his eyes.

  • A Trump campaign adviser told Axios: "He finally listened." 

The result: A real debate.

Biden to Trump: "I have not taken a penny from any foreign source ever in my life"

Former VP Joe Biden pushed back Thursday against allegations from President Trump, saying he had never profited from foreign sources. "Nothing was unethical," Biden told debate moderator Kristen Welker about his son Hunter's work in Ukraine while he was vice president.

Why it matters: Earlier on Thursday, Hunter Biden's former business partner, Tony Bobulinski, released a statement saying Joe Biden's claims that he never discussed overseas business dealings with his son were "false."