Moderate Republicans are few and far between
Back in March 2019, FiveThirtyEight’s Perry Bacon Jr. described five wings of the Republican Party from most to least Trumpian. The takeaway was clear. The fortunes of those who were the most solidly aligned with Trump (Bacon listed Rep. Matt Gaetz of Florida, Rep. Jim Jordan of Ohio and Rep. Mark Meadows of North Carolina as prominent examples; I’d add Arkansas Sen. Tom Cotton and Missouri Sen. Josh Hawley) were rising within the party, while the fortunes of the so-called Trump skeptics were falling. Some, like Rep. Justin Amash of Michigan, have left the party. Others, like Rep. Will Hurd of Texas, are retiring. And then there are the anti-Trumpers, like former Ohio Gov. and 2016 presidential contender John Kasich, who are now endorsing Biden.
Anybody with any ambitions within the party has, in other words, embraced Trump and Trumpism.
Moderate Republicans are few and far between
…The more extreme the Republican Party has become, the more moderates have opted out or just been passed over. The more moderates have opted out or been passed over, the more extreme the party has become. And the more the Republican Party recedes to just elected officials in solidly conservative states and districts, the more they define the party.
Extreme right-wing media, activists and donors are increasingly influential
…Conservative media is part of this trend as well, as it has long played a central role in shaping the GOP. On some days, it’s hard to tell who’s running the country — Trump, or the Fox News hosts who give him many of his ideas (not to mention the rotating cast of characters who have jumped between the administration and the network).
But, at its core, right-wing media is opposition media, built around rejecting liberalism. It is a business driven by outrage and anger.
Voters are becoming more extreme
Finally, there are the Republican voters. The GOP is more and more a party of disaffected non-college-educated white people — especially men and those over age 50. …the Republican Party has traded its younger, college-educated white people — especially women — for the Democrats’ non-college-educated, older white people — especially men.
Few forces of moderation remain
Political analysts will sometimes recount how the Democrats, after losing three consecutive presidential elections, nominated Bill Clinton in 1992 and moved in a more centrist direction. This might feel like a tempting comparison to make with the GOP now, but the key difference is that the Democrats of the early 1990s had a more diverse coalition to draw on that made that kind of pivot possible (even as late as the 1990s, the Democratic Party had plenty of rural and Southern supporters). By contrast, the Republican coalition of today lacks any significant liberal or moderate factions who might pull it back to a more centrist position.