In North Carolina, Tricia Cotham won election as a Democrat in a Democratic district. She campaigned on a pledge to protect abortion rights and to oppose vouchers. Soon after winning election, Cotham flipped her party affiliation. Her flip gave Republicans a supermajority in both houses, meaning that Democratic Governor Roy Cooper could not veto anything passed by the far-right Republican General Assembly.
Thanks to Cotham, the Republicans tightened restrictions on abortion (to 12 weeks) and expanded the state voucher program.
Having betrayed the people who elected her, Cotham needed her district to be adjusted. Republicans complied, giving her a district with more Republicans.
RALEIGH, N.C. (AP) — North Carolina state Rep. Tricia Cotham, whose party switch earlier this year blindsided state Democrats and gave Republicans veto-proof majorities in both legislative chambers, announced Saturday she will run for reelection.
Cotham’s announcement ends speculation over her political future after Republicans last month redrew maps for the state’s congressional and legislative districts that seemed to reward her with options if she chose to run for office in 2024.
The redrawn state House map places Cotham’s Mint Hill residence in a new district where Republicans appear to have a slight advantage, according to statewide election data. Had her district gone unchanged, she would have faced an extremely tough path for reelection.
It remains to be seen whether her new district likes double-dealers.
Diane Ravitch's blog 
Thieves
Thick as.
You can be assured that she will be target number one for the state Democratic Party’s efforts to contest Republican districts, especially close ones. Cotham has been given an R+2 district in an area where her switch is still likely to leave a bad taste in a lot of people’s mouths. If this turns out to be a year that’s good for Democrats (and it might yet) then this whole gerrymander might come back to bite the GOP when they lose a lot of the “lean Republican” districts due to the way they had to cut close to the margins to try and secure their supermajority.
Turncoats are not respected, not even by those they join.
“You can be assured that she will be target number one for the state Democratic Party’s efforts. . . .”
No we can’t be assured of that. The Dims have snatched defeat from the jaws of victory far too many times in the recent past to expect them to do anything special.