In Wisconsin, there is one type of absentee ballot that does not require ID: 'indefinitely confined.'[1]
The total number of indefinitely confined voters between 2010 and 2019 was 40,709. In 2020, the number of indefinitely confined voters in Wisconsin dramatically shot up to 169,282, more than the past 10 years combined.
To illustrate just how extreme the jump in indefinitely confined voters was, here's the data presented as a graph:
The Wisconsin Elections Commission[2] website states:






