The biggest divide can be called “insurgent wing” vs. “establishment wing,” but that’s only one fault line within the GOP. A chasm separates the Republicans — including former president Donald Trump — who eagerly got the vaccine and booster shot as soon as they were available and those who think there is a sinister underbelly of misinformation and power accumulation to the entire coronavirus prevention campaign.

Another deep fault line concerns the 2020 election. Many Republican primary voters believe President Biden’s win is tainted, thinking the election deeply troubled by sudden rules innovations brought on by covid-19 as well as ham-handed outside actors. This group suspects that the $400 million Mark Zuckerberg and his wife, Priscilla Chan, donated to local election offices delivered Biden’s win via boosted turnout. (“How Private Money From Facebook’s CEO Saved The 2020 Election” is the way NPR framed the donations; those GOP voters — hardly fans of NPR — agree with that framing.) A subset of the “election objectors” mistakenly think material fraud occurred in enough states to have awarded the election to the former president. A smaller group, also mistakenly, thinks former vice president Mike Pence could have set aside the election results.

On foreign policy, there’s another huge split. On one end are peace-through-strength voters who want to reopen Bagram air base in Afghanistan and who believe that America’s commitment to the defense of Taiwan includes, if necessary, American submarines sinking Chinese ships headed toward the island. On the other end, a reborn isolationist wing — stronger than at any time since before World War II — is stirring and organizing.