So what does it mean that the most influential voice in Republican politics trafficks in white nationalism, conspiracy theories, and outright falsehoods while at the same time wielding the power to shape public and legislative opinion? The GOP now largely has to deal with issues on Fox’s terms, and Carlson’s bad-faith hysterics over critical race theory, transgender people, the coronavirus pandemic, Black Lives Matter, anti-fascism, immigration, and myriad other issues have created a climate in which legislative priorities do not match the tangible needs of the American people. Instead, conservative politics has been consumed by a feverish race to the far-right on issues that appear in Fox News’ prime time — with Tucker Carlson setting the agenda and enforcing the new party orthodoxy.

Source: Tucker Carlson has full control over Fox and its stranglehold on the Republican Party | Media Matters for America