Answer:
he modern political party system in the U.S. is dominated by the Democratic Party and the Republican Party. These two parties have won every United States presidential election since 1852 and have controlled the United States Congress to some extent since at least 1856.
Explanation:
The prepositional phrase would be "of the state". The word "of" is a preposition.
Examples of other prepositions: before, after, across, within, on, over, under, through, behind
A prepositional phrase has a preposition and a noun/pronoun after it.
Crossing- present participle
Crossing the street is dangerous and illegal- phrase?