Is “Mugwump” a Scrabble word?
Yes
MUGWUMP
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Mugwump
noun
1.An independent neutral politician, especially in reference to the 1884 U.S. presidential election.
2.An aloof or self-important but inconsequential person.