X Corp. is an American technology company established by Elon Musk in 2023 as the successor to Twitter, Inc. It is a wholly owned subsidiary of X Holdings Corp., which is itself owned by Musk. The company owns the social networking service X and has announced plans to use it as a base for other offerings.

Media Matters for America (MMfA) is a nonprofit left-leaning watchdog journalism organization. It was founded in 2004 by journalist and political activist David Brock as a counterweight to the conservative Media Research Center. It seeks to spotlight "conservative misinformation" in the U.S. media; its methods include issuing reports and quick responses. Two example initiatives include the "Drop Fox" campaign (2011-2013) that sought to discredit Fox News' "fair and balanced" claims; and a 2023 report about X that highlighted antisemitism on the platform.