Something to tweet about: Trump’s favorite social media tool makes the S&P 500

Twitter, the preferred communication tool for a president focused on winning, is notching a victory of its own: joining the S&P 500.

On Thursday, the San Francisco-based company will replace the agro-chemical giant Monsanto — which is being acquired by German pharmaceutical firm Bayer AG — in the index, one of the most widely tracked on the stock market.

Twitter has long been President Trump’s favorite sounding board, one he uses to criticize the news media, compliment supporters, promote his accomplishments, and on occasion, announce new policies.

While several lawmakers, some in his own party, have urged him to step back from the social media platform, Trump’s account has accumulated more than 52 million followers, granting him a huge audience with whom he can share his unfiltered thoughts.

[Also read: 69 percent of voters think Trump should stop using his personal Twitter account, including almost half of Republicans: Poll]

Members of the Senate and House of Representatives from both sides of the aisle are using the platform more and more themselves as they adapt to the challenge of communication with constituents who rely increasingly on social media. Sen. Elizabeth Warren, a Massachusetts Democrat, made headlines when she used it earlier this year to call out Wells Fargo chief Tim Sloan over scandals including the creation of millions of phony accounts.

Indeed, there has been a gradual integration of Twitter, which now has a payroll of more than 3,000 and a market value of $29.9 billion, into the news cycle — partially thanks to Trump’s aggressive use.

Of course, that comes with complications of its own: When a departing employee shut down the presidential Twitter account for 11 minutes last fall, the company found itself having to explain what had happened.

The president often posts several comments a day, many of which make news, and he garnered headlines when he blocked other Twitter users from looking at his account. In late May, a federal judge in New York City ruled that Trump violated their constitutional rights, and the White House has since unblocked them. Trump is appealing the decision.

Other leaders from around the world are also embracing the platform: Narendra Modi, the prime minister of India, has almost 43 million Twitter followers, and Turkish President Recep Tayyip Erdogan, who was once a strong opponent, now has 13 million followers.

The tool has also become an important medium for businesses, Twitter itself among them, to communicate with customers. Companies such as Facebook and Airbnb have established multiple Twitter accounts to offer customer service, general news and specific channels of content for customers.

Twitter has climbed 4.7 percent in New York trading since its promotion to the S&P 500 was announced, and UBS analyst Eric Sheridan noted after the company’s April earnings report that user engagement was growing, luring advertisers eager to take advantage.

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