One of the multiple tweets in which Donald Trump, angry at a Facebook campaign showing a cheesecake photo of his wife, threatened to retaliate against the reputation of Heidi Cruz.
Facebook CEO Mark Zuckerberg speaks during a conference at the Mobile World Congress, the world's largest mobile phone trade show in Barcelona, Spain, in this March 2, 2015, file photo. (AP Photo/Manu Fernandez, File)
This Feb. 19, 2014, file photo, shows WhatsApp and Facebook app icons on a smartphone in New York. WhatsApp, the Internet messaging service owned by Facebook, announced in February 2016 that it now has 1 billion users worldwide. (AP Photo/Patrick Sison, File)
FILE - In this June 11, 2014, file photo, a man walks past a Facebook sign in an office on the Facebook campus in Menlo Park, Calif. Facebook reports financial earnings Wednesday, Jan. 27, 2016. (AP Photo/Jeff Chiu, File)
Panda cub Bei Bei is making his official public debut on Saturday, Jan. 16, 2016. (Image: Facebook/Smithsonian’s National Zoo and Conservation Biology Institute)
Thomas County Sheriff's Deputy Jason Shierling has resigned after he was suspended without pay for a Facebook post appearing to joke about shooting Black Lives Matter activists. (WALB-TV)