So we know what it's like when two candidates who don't agree on much go at it. But what's it like when a husband and wife who don't agree on politics go at it? Can that marriage survive?
Do you cringe when you hear someone talking politics? It can be a very divisive subject, especially when you're in a social setting.
But how do you handle politics in your own home when your partner has opposing views? We talked with a couple who couldn't be more different living under the same roof.
"He thinks very globally, I think very micro. I see everything as gray, he says them as black and white," says Shelly Everson. "He researches more than I do. I go more on gut."
After dating for 5 years, Shelly and Nick Everson ignored their differences, followed their hearts, and tied the knot.
The Phoenix couple now has a 2-year-old son. One parent is red, the other is blue.
Tuesday night, they sat in their living room together watching the second presidential debate. But they are far from being on the same page.
"Every now and then we will butt heads."
They disagree on taxes, the role of government -- but they actually agree on health care.
If things get too heated...
"Change the subject or walk away," says Nick.
As for their toddler, they plan on teaching him both sides and letting him choose his party. The marriage works because they know neither person is going to change.
"We've had to learn how to argue and how to communicate."
That could be the key to all happy relationships -- learning how to argue and communicate. Shelly says it has taken years of practice.