TL;DR
In the sample sizes of the study, they found:
**A) Out of infrequent Republican registered voters who the State has recorded an Absentee vote in 2020, when called the voter said that they did NOT vote.
IN OTHER WORDS, (POSSIBLY) SOMEONE VOTING WITH YOUR NAME AND FORGING YOUR SIGNATURE.**
MI: 2.8% out of all voters called in the sample
NV: 2.22%
AZ: 0.94%
GA: 0.85%
PA: 0.70%
WI: 0.66%
**B) Out of Republican registered voters who requested, received, and stated that they returned the absentee ballot - the State records they did NOT VOTE AT ALL.
IN OTHER WORDS, YOU VOTE AND IT "DISAPPEARED".**
AZ: 50.01% out of all in the sample size
PA: 41.86%
GA: 44.08%
MI: 32.61%
WI: 20.00%
[UPDATED LINKS]:
Study A: https://twitter.com/MattBraynard/status/1329477772822065152
Study B: https://twitter.com/MattBraynard/status/1329449463354695682
Clarification that the study is indeed a 100% Republican data universe: https://twitter.com/MattBraynard/status/1328543627837132800
The tweet says "infrequent voters in precincts with high turnout," not "Republicans"
Wisconsin doesn't have "registered Republican" voters - Wisconsin doesn't have party affiliations or register someone with a party.
There's a tweet addendum about Pennsylvania that talks about "registered Republicans." But that's not possible for Wisconsin.