Twitter

The Justice Department is appealing a ruling made last month that President Trump cannot block followers to his Twitter account based on their political views, according to a court filing.

In the past, the president has blocked critics from his @realDonaldTrump account, ranging from novelist Stephen King, comedian Rosie O'Donnell and Philip Cohen, a professor of sociology at the University of Maryland and one of seven plaintiffs in the case.

The arrests of two black men waiting for a friend at a Philadelphia Starbucks continues to fuel conversations about implicit racial bias in public spaces. Many of those conversations begin with "I'm not surprised."

"When I have to move through predominately white spaces I'm always on alert and my anxiety is always high because I don't know what's going to happen at that moment," says Elon James White.

Just who controls the Twitter handle @realDonaldTrump? If you guessed the president, journalist Robert Draper says you might be only partially correct.

Draper's recent New York Times Magazine article profiles White House social media director Dan Scavino — a man Draper estimates helps craft about half of the president's tweets.

"A lie can travel half way around the world while the truth is putting on its shoes."

Mark Twain said that. Actually, it was Winston Churchill. Oh, wait! He didn't say it either. But you can find fairly credible looking sources that attribute those words to one of those two famous men.

Whoever said it, a study on how news travels on Twitter confirms the basic truth of the quote. But on Twitter, lies spread a lot faster.

As the news broke of a school shooting in Parkland, Fla., on Wednesday, hundreds of Twitter accounts believed to be under Russian sway pivoted.

Many had been tweeting about places like Syria and Ukraine — countries where Russia is seeking to strengthen its influence. Suddenly the accounts shifted to hashtags like #guncontrol, #guncontrolnow and #gunreformnow. Tweets mentioning Nikolas Cruz, the name of the shooting suspect, spiked.

Twitter says it has turned a profit for the first time last quarter, sending its shares surging. As of mid-morning Thursday its shares were up nearly 23 percent.

Since 2010, Library of Congress has been archiving every single public tweet: Yours, ours, the president's.

But today, the institution announced it will no longer archive every one of our status updates, opinion threads, and "big if true"s. As of Jan. 1, the library will only acquire tweets "on a very selective basis."

In an effort to curb a reputation of faulty policy enforcement — and to "make Twitter a safer place" — Twitter says it will enforce a fresh set of guidelines to reduce abusive and violent content, beginning today.

The new rules target hate symbols, abuse and unwanted sexual advancements. One clause effectively prohibits accounts from associating with hate groups:

With a single 8 a.m. tweet, a classic Trumpian feud has erupted between the president of the United States and the junior senator from his home state, a high-profile female Democrat who called his tweet "a sexist smear."

Sen. Kirsten Gillibrand, D-N.Y., was attending a bipartisan Senate prayer meeting Tuesday morning when she got a phone call. President Trump had tweeted about her.

This appears to have been a response to Gillibrand's call on Monday for Trump to resign.

Updated at 9:20 p.m. ET

President Trump on Wednesday morning shared with his millions of Twitter followers incendiary videos from a far-right British anti-Muslim party, drawing criticism from Britain's prime minister and Islamic groups.

Social media companies like Twitter and Facebook have been testifying before Congress over the past few weeks about how their platforms were used by Russian agents to interfere in the 2016 US election.

Updated at 2:25 p.m. ET

Updated Oct. 25 at 1:42 p.m. EDT

Twitter has promised more disclosure about its advertisements as members of Congress put the big social networks under a microscope in investigating Russian interference in U.S. politics.

The San Francisco-based microblogging service said Tuesday that it plans to unveil an "industry-leading transparency center" through which it will "offer everyone visibility into who is advertising on Twitter, details behind those ads" and tools through which users can respond.

Shortly before Election Day last year, some helpful-looking posts began popping up on Twitter: No need to stand in line or even leave home, they said — just vote by text!

The messages, some of which appeared to come from Hillary Clinton's campaign, had versions in Spanish, with gay pride flags and other permutations. They were also 100 percent false.

Where did they come from?

Since the dawn of Twitter, the social network has been defined by its limit: 140 characters. But in a tweet that offered a glimpse of what is to come, co-founder Jack Dorsey announced that the service plans to experiment with doubling that cap.

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