Sen. Pat Toomey in the Capitol on Sept. 22. Photo: Tom Williams/CQ-Roll Call via Getty Images

Sen. Pat Toomey (R-Pa.) announced Monday that he will not run for re-election in 2022.

Why it matters: Pennsylvania is a key swing state that the Biden and Trump campaigns are jockeying hard to win in November — although Trump won Pennsylvania by less than 1 percentage point four years ago. Toomey also said he will not run for governor in 2022, which leaves two open races in the state.

What he's saying: "As I say, I've got two years left. And my intention is to work as hard as I possibly can," Toomey said at a press conference.

  • "It is my hope that I'll be the chairman of the Senate Banking Committee because I am hopeful and cautiously optimistic that my Republican colleagues will prevail in a number of tough races and we will be in the majority."
  • Toomey reiterated his support for President Trump and the president's re-election campaign, saying he hoped to work under Trump for two more years.

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The cliffhanger could be ... Georgia

Illustration: Sarah Grillo/Axios

It hasn't backed a Democrat for president since 1992, but Georgia's changing demographics may prove pivotal this year — not only to Trump v. Biden, but also to whether Democrats take control of the Senate.

Why it matters: If the fate of the Senate did hinge on Georgia, it might be January before we know the outcome. Meanwhile, voters' understanding of this power in the final days of the election could juice turnout enough to impact presidential results.

Pence to continue traveling despite aides testing positive for COVID-19

Marc Short with Pence in March. Photo: Drew Angerer/Getty Images

Marc Short, Vice President Mike Pence’s chief of staff, tested positive for the coronavirus Saturday and is quarantining, according to a White House statement.

Why it matters: Short is Pence's closest aide, and was one of the most powerful forces on the White House coronavirus task force. Pence and second lady Karen Pence tested negative for the virus on Sunday morning, according to the vice president's office.

AOC: "Extremely important" that Biden offer Bernie Sanders a Cabinet position

Rep. Alexandria Ocasio-Cortez (D-N.Y.) said on CNN's "State of the Union" Sunday that she believes it's "extremely important" that Joe Biden offer Sen. Bernie Sanders and other progressive leaders Cabinet positions if he's elected president.

The big picture: Ocasio-Cortez was pressed repeatedly on policy differences between her and the more moderate Biden, including her opposition to fracking and support for Medicare for All. She responded that it would be a "privilege" and a "luxury" to be able to lobby a Biden administration on progressive issues, insisting that the focus right now should be on winning the White House.