No, the 4G phones haven't suddenly willed themselves into 5G devices. Rather, AT&T has decided to start marketing its current LTE Advanced network as "5G E" because it says it's part of the evolution to 5G.

Driving the news: What had been industrywide grumbling turned into a lawsuit Friday as Sprint sued AT&T over this branding. Sprint also wants an injunction to get AT&T to stop using the term to apply to anything that isn't real 5G.

Why it matters: Real 5G networks will start showing up this year, including on AT&T's network, in select cities. But true 5G only works with new phones designed for it and in the small number of cities whose networks are updated.

  • AT&T's faux 5G, meanwhile, works with a number of existing phones and in a broader range of cities.

Our thought bubble: This type of marketing is bound to cause confusion. It's hard to see how anyone benefits other than AT&T, and perhaps Apple, which almost certainly won't have a real 5G iPhone this year.

Flashback: A similar thing happened during the advent of 4G, with AT&T and T-Mobile labeling a faster version of 3G networks as 4G.

Go deeper: When 5G will arrive

Go deeper

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.

  • With a firm moderator, NBC News' Kristen Welker — along with threats of mic cutoffs and advisers' pleas for Trump to cool it — voters finally heard clear contrasts.
  • Trump swung several times, but never quite landed a punch as he tried to connect Biden to a nebulous cloud of allegations about business dealings by his son Hunter.

Between the lines: Trump didn't focus on assuring women voters or seniors. But his economic argument could reassure some men in swing states.

  • Trump went back to 2016 mode — the outsider, chiding career politicians. But he's one of them now.

During an exchange about race in America, Trump said: "Nobody has done more for the black community than Donald Trump, with the exception of Abraham Lincoln — possible exception. ... I'm the least racist person in this room."

  • Biden retorted sarcastically, referring to Trump: "Abraham Lincoln here is one of the most racist presidents we’ve had in modern history."

Videos:

Reporting was contributed by Stef Kight, Alexi McCammond, David Nather and Hans Nichols.

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."

Trump claims COVID "will go away," Biden calls his response disqualifying

President Trump repeated baseless claims at the final presidential debate that the coronavirus "will go away" and that the U.S. is "rounding the turn," while Joe Biden argued that any president that has allowed 220,000 Americans to die on his watch should not be re-elected.

Why it matters: The U.S. is now averaging about 59,000 new coronavirus infections a day, and added another 73,000 cases on Thursday, according to the Covid Tracking Project. The country recorded 1,038 deaths due to the virus Thursday, the highest since late September.