turn (one's) coat

dated To change one's allegiance or affiliation (especially in politics) for personal gain or advantage. A good politician will espouse the most hard-line stance of his party's political ideologies, but a successful politician knows when to turn his coat.

Common Names:

Name	Pronounced	Usage
Ognyana	-	Bulgarian
ÍVarr	-	Ancient Scandinavian
Beatrix	BE-ah-triks (German), BAY-ah-triks (Dutch), BEE-ə-triks (English)	German, Hungarian, Dutch, English (Rare), Late Roman
Sigrid	SEEG-reed (Finnish)	Norwegian, Swedish, Danish, Estonian, Finnish (Archaic)
Diodoros	-	Ancient Greek
Leon	LEE-awn (English), LE-awn (German, Polish)	English, German, Polish, Slovene, Croatian, Dutch, Ancient Greek