Using his social-media megaphone to roil the waters, the tech entrepreneur is promoting a new anti-immigration party; ‘civil war is inevitable’ LONDON—On the eve of becoming the world’s first trillionaire, Elon Musk was fixated on political turmoil an ocean away from SpaceX headquarters.In one X post, he called the mayor of Belfast a “betrayer of her people.” In another, he called a British political leader “a scumbag and a traitor.” And a post from a once-obscure politician named Rupert Lowe—whose nascent far-right party Musk had declared the only hope for salvaging Britain’s future—got more than three million views after Musk...