Table 4 Party Loyalty in Five Battleground States. Each proportion shows the proportion of voters in each row group who voted for a particular Presidential candidate. N shows the number of voters in each group.

From: Cast vote records: A database of ballots from the 2020 U.S. Election

 

Biden

Trump

Libertarian

Undervote

N

Down-ballot Democrat

0.979

0.012

0.004

0.001

3,505,313

Down-ballot Republican

0.019

0.968

0.007

0.003

3,658,541

Mixed

0.521

0.407

0.047

0.011

1,522,658