Joe Biden twice referred to President Trump as "this guy," and Trump called the former vice president's family "like a vacuum cleaner" for foreign money.
Why it matters: The personal venom — during Thursday's final presidential debate, in Nashville — was a reminder that even during a more normal debate, nothing this year is normal.
A surprise offer from Vladimir Putin has the U.S. and Russia once again circling a potential pre-election nuclear deal.
The big picture: The last treaty constraining the U.S. and Russia, New START, is due to expire on Feb. 5, 2021, two weeks after the next U.S. presidential inauguration. For the first time since the height of the Cold War, the nuclear guardrails could come off.
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.