both political parties
Refers to two specific political parties, usually in a context where both are being discussed together.
両党は政策について合意した。
Both parties agreed on the policy.
The two parties are at odds over the budget bill.
The two parties reached an agreement on tax reform.
Talks between the two parties are set to resume next week.
liking both alcohol and sweets
Compound of 両 (both) and 党 (political party).