The story
Blend of Lieberman + Democrat, from Joseph Lieberman, a US Senator from Connecticut who left the Democratic Party after being defeated in the party primary in 2006.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A Democrat whose politics resemble those of Joseph Lieberman; in recent use, often specifically a Democrat who acts like a Republican Full definition →
Blend of Lieberman + Democrat, from Joseph Lieberman, a US Senator from Connecticut who left the Democratic Party after being defeated in the party primary in 2006.
Etymology from Wiktionary, CC BY-SA 4.0.