doughface
/ˈdoʊfеɪs/Definitions
1. noun
A Northerner who votes with the Southern Democrats in the U.S. Congress, especially during the mid-19th century.
“The politician was accused of being a doughface for switching sides on the slavery issue.”
2. noun
A person who pretends to have a particular quality or opinion but does not really have it.
“The artist was accused of being a doughface when he spoke out against censorship in the arts.”