Between January 6th and January 12th, about 4,600 Republicans changed their party status in Colorado, according to a CPR News analysis. There was no comparable effect with any other party. CPR News was able to contact dozens of them by tracking changes in the state's voter file.The number of people changing parties spiked immediately after the Capitol breach. The same phenomenon is playing out nationwide. News outlets documented about 6,000 defections from the party in North Carolina; 10,000 in Pennsylvania; and 5,000 in Arizona.
Interviews and data analysis show how the tumultuous postelection period has created a new split within the Republican Party.
For some right-of-center voters, the violence at the Capitol was simply the final straw. They described an increasingly strained relationship with the GOP, with some citing the rise of Sarah Palin more than a decade ago as the first sign that the party was focusing on culture wars instead of fiscal conservatism.
Martin Lee Hussman, a well-connected resident of Alamosa in the southern part of the state, was previously a registered Libertarian but voted for Trump last November. As he watched the fallout of the riots, he decided that Democrats should hold power for the foreseeable future.
"Honestly, I think the Republican Party is dead. I don't think there's going to be a Republican Party in the next couple years," he said.
Other newly former Republicans had the opposite reaction: They cut ties with the party because they felt its leaders had abandoned Trump by blaming him for the riot and refusing to overturn the election.
In rural Weld County, 44-year-old Sara Ocker switched from Republican to unaffiliated and doesn't expect to vote again anytime soon, because she doesn't believe the elections are run fairly.
"We've all been living a lie and been told a lie," she said.
She hasn't spoken with her parents, who are Biden supporters, since the election. They see her as a QAnon conspiracy theorist, she said, but she thinks of herself as a skeptic who does her own research.
"The party's got to implode," she said.
The change has been especially pronounced in Colorado's politically competitive counties. In fact, nearly 800 of the switchers were in Douglas County, a Republican stronghold where the party has recently been losing strength—another dangerous signal for the GOP. While Douglas is only the seventh-most-populous county in the state, it had the largest number of voters who left the Republican Party.
"There's going to be a point where the party has to decide what kind of party it wants to be moving forward—and unfortunately for the party as a whole, that's going to mean no matter which fork in the road they choose, they're clearly going to lose what is part of the coalition or has been part of the coalition," strategist Winger said.
"The job after that is going to be to rebuild."