Elon Musk’s credentials as a “free speech absolutist” came into question over the weekend after the X owner elevated an antisemitic campaign to ban the Anti-Defamation League from his social media site. “Perhaps we should run a poll on this?” Musk tweeted on Saturday, responding to a notorious extremist pundit, who noted that #BanTheADL was trending on the site formerly known as Twitter. The Tesla CEO made the eyebrow-raising tweet after he also liked a post from hard-right YouTube influencer Keith Woods, who said the ADL is “financially blackmailing social media companies into removing free speech on their platform.” Musk...