How are the Democrats and Republicans dependent on one another?

How are the Democrats and Republicans dependent on one another?

Matthew Jones (Political Science Instructor) gives expert video advice on: Are the two parties really that different from each other?; How are the Democrats and Republicans dependent on one another?; When do Democrats and Republicans compromise? and more...

How are the Democrats and Republicans dependent on one another? They play off of each other, so the Republicans can always point to the Democrats and say "they're going to raise your taxes" and all of that sort of thing. And "that's why you should vote for us instead of the other guys." So its kind of the old science fiction thing that you can't have evil without good or good without evil. That sort of thing. Without the Democratic party, the Republican party doesn't have anybody to point to and to say "hey, we're not them" and vice versa. And I think that's the main way they are dependent upon each other, especially in a two party system because they keep pointing to each other and not to any of the other parties. And they can guarantee its one of them two who is going to gain into office.