Dating marriage member 2016
People sort into relationships with co-partisans, but not that much.
Third, there is a much higher rate of mixed-partisan couples among younger pairs than older pairs.
That phenomenon motivated a colleague and me to gather data about mixed-partisan marriages. We focused on registered voters in the 30 states that track voters’ party affiliation.
We were curious: How many Americans are married to someone of the other party? For simplicity, we mostly focused on male-female partners who live at the same address, share a last name, are within 15 years of age (sorry, Donald and Melania Trump), and are the oldest such pair in the household.
We also cut the data in other ways, such as incorporating same-sex couples as well as couples who do not share a last name.
Second, 55 percent of married couples are Democratic-only or Republican-only, which raises a question: Is that a big number or a small number?
In other words, is there more or less partisan intermarriage than we should expect? We can compare interparty marriages to interracial marriages.