Republicans
Which party, which country which assembly. If you are not specific you will not get your question answered.
Democrats
The Republican Party currently holds a majority of seats in both houses of the Utah state legislature.
The Republican Party currently holds a majority of seats in both houses of the North Dakota state legislature.
The Republican Party currently holds a majority of seats in both houses of the South Carolina state legislature.
The Democratic Party currently holds a majority of seats in both houses of the Delaware state legislature.
The Republican Party currently holds a majority of seats in both houses of the Arizona state legislature.
The Democratic Party currently holds a majority of seats in both houses of the Hawaii state legislature.
The Republican Party currently holds a majority of seats in both houses of the Minnesota state legislature.
The Democratic Party currently holds a majority of seats in both houses of the Illinois state legislature.
The Republican Party currently holds a majority of seats in both houses of the Idaho state legislature.
The Republican Party currently holds a majority of seats in both houses of the Alabama state legislature.