Gov. Henry McMaster’s name appeared on the president’s Twitter feed no fewer than 10 times in the month leading up to his renomination victory in South Carolina Tuesday night, with an 11th tweet late that night to congratulate him on his “BIG election win.”

That high-level endorsement from the president was sent to his more than 50 million Twitter followers – 10 times the population of South Carolina.

It’s no surprise that Trump uses Twitter, his preferred method of unfettered communication, as a megaphone for GOP candidates running in 2018. While the influence of the president’s tweets can’t be measured at the ballot box, the multitude of candidates he’s plugged on Twitter makes clear that he plans on using the platform to broadcast his support in the midterms.

As primary season has kicked into high gear over the last three months, the president has mentioned midterm candidates on Twitter almost 60 times.

The candidates who have come up the most on his feed are also candidates who face tough races, like North Dakota U.S. Senate hopeful and current Rep. Kevin Cramer. Trump tweeted his support for Cramer earlier this month and campaigned for him Wednesday night in Fargo –- rousing the crowd with many of the same lines he so frequently uses to boost chosen GOP candidates on Twitter.

A presidential tweet can be a beacon of hope for GOP candidates: Rep. Dan Donovan of Staten Island won his primary Tuesday on the heels of two tweets from Trump, while California gubernatorial candidate John Cox saw four tweets of presidential support before his primary victory earlier in June – with a fifth congratulatory tweet when he won.

And then there’s Rep. Mark Sanford, who lost the South Carolina House primary to an underdog challenger, State Rep. Katie Arrington. The president stayed quiet about the race on Twitter until mere hours before the polls closed when he tweeted that Sanford was “very unhelpful to me in my campaign to MAGA.” After Sanford’s loss, he said he’d waited to tweet his support for Arrington at the urging of staffers, who thought she wouldn’t win, but that he “had to give it a shot.”

Arrington was in a car accident about 10 days after her win that left her seriously injured. She is expected to recover in the coming weeks.

Her Democratic challenger, Joe Cunningham, said he would also be suspending events “until further notice.”

Trump’s tweets, in 280 characters or less, show both what he looks for in candidates and what he thinks will help them win. Of the almost 60 tweets the president has sent on midterm candidates since April, these are the messages he most repeatedly pushes.

Plugs for support on the tax bill are most popular. Eleven candidates have seen their names on the president’s Twitter feed because they “love” to cut taxes, want to lower taxes or were a “great help” to the president in passing his tax cut bill, according to his tweets.

Nine candidates received a Twitter shoutout for being “strong” and “tough” on crime and the border. Geographically, the candidates he’s tweeted about on border security are spread east to west from New York to California, and as far south as Florida to as far north as North Dakota.

And finally, he hones in on love for the military and veterans — often “our Military” and “our Vets,” in tweets. Over the last three months, he’s tweeted this about six candidates running up and down the ballot in 2018, like Donovan and Republican Gov. Asa Hutchinson of Arkansas, who’s running for re-election this November.

The president’s support for GOP candidates on Twitter has been matched in recent weeks by his campaign rally appearances. In just over a week, he’s traveled to Minnesota to campaign with Rep. Pete Stauber, to South Carolina to campaign with McMaster and, most recently, to North Dakota to campaign with Cramer, who will face Democratic incumbent Sen. Heidi Heitkamp in November.

Mark Zuckerberg’s congressional face-off in April was not nearly the grilling that some had anticipated. Up against lawmakers who seemed to have only a passing knowledge of Facebook’s inner workings, the famously uncharismatic C.E.O. managed to turn the hearings on their heads. In the end, he emerged largely unscathed, spouting the usual pledges to do better. But in the past week, new reports have emerged showing that Zuckerberg failed to mention some of Facebook’s more questionable data-sharing practices to Congress, throwing Facebook back into purgatory just as it was beginning to claw its way out.

For the second time in a week, The New York Times has published a report revealing the extent of Facebook’s data-sharing partnerships. While Sunday’s report revealed that the social-media giant shared extensive user data with certain companies, at times without those people’s permission, Wednesday’s zeroes in on four of those companies: Huawei, Lenovo, Oppo, and TCL, all Chinese manufacturers. Huawei’s presence on the list is particularly eyebrow-raising—the Chinese telecommunications-equipment manufacturer has been described by senators attempting to block the U.S. government from using Huawei devices as “effectively an arm of the Chinese government.” The heads of six major U.S. intelligence agencies have warned against buying Huawei phones, and a recently proposed Federal Communications Commission rule could prevent mobile providers from receiving federal money if they allow the company’s devices to be used on their networks.

Facebook’s agreement with Huawei is reportedly not dissimilar to its agreements with American companies like Apple and Amazon—essentially, the tech giant has been helping manufacturers build Facebook functionality into their products, which gives users easy access to Facebook features. To do this successfully, however, Facebook had to give partner companies access to data through private A.P.I.s.; that data reportedly included information about users, their friends, and friends of their friends, including religious and political affiliations and relationship status. In total, Facebook reportedly struck a similar agreement with at least 60 manufacturers, but has been winding down the deals since April, per the Times.

Facebook assured the Times that all data shared with Chinese companies was stored on the devices themselves rather than handed over outright, and Huawei, too, has said it did not collect or store Facebook user data. But that hasn’t stopped lawmakers from sounding the alarm. “We need answers from Facebook,” tweeted top Senate Intelligence Committee Democrat Mark Warner on Tuesday. “The whole story, now, not six months from now.” Hours earlier, he had voiced concerns over Facebook’s data-collection practices more generally. “Unfortunately with Facebook, it is a great company, but we’re seeing this pattern repeat itself,” he said at an Axios event. “They’ve got some folks that know politics . . . They should realize: come clean with the whole story in the first 24 hours. Don’t let this dribble out. And I’ve got some very serious questions, particularly because of the ongoing threat that these Chinese telecom companies pose.” Senator John Thune, who leads the Commerce Committee that oversees the Federal Trade Commission, which is assessing whether the company’s data policies violate a 2011 F.T.C. consent decree, is asking Facebook to give Congress more details about its data partnerships. “Facebook is learning hard lessons that meaningful transparency is a high standard to meet,” he told the Times.Even Marco Rubio fired off an ominous tweet. “This could be a very big problem,” he wrote. “If @Facebook granted Huawei special access to social data of Americans this might as well have given it directly to the government of #China.”

In response to these dire warnings, Facebook has argued that doing business with Huawei and other Chinese companies simply made sense. “Huawei is the third largest mobile manufacturer globally and its devices are used by people all around the world, including in the United States. Facebook along with many other U.S. tech companies have worked with them,” Facebook mobile-partnerships exec Francisco Varela told Axios in a statement. “Facebook’s integrations with Huawei, Lenovo, Oppo, and TCL were controlled from the get go—and we approved the Facebook experiences these companies built . . . all the information from these integrations with Huawei was stored on the device, not on Huawei’s servers.” But even if Facebook user data didn’t make its way to the Chinese government, or even to Chinese manufacturers on a permanent basis, the company’s failure to disclose the partnership could inflame hostilities on Capitol Hill at a crucial moment. Facebook’s business, after all, depends on trust. And though at first glance its partnership with Chinese manufacturers seems far more benign than its failure to stop Cambridge Analytica from siphoning user data, in the face of regulatory threats and public scrutiny, the situation’s optics, rather than its substance, may prove more important.