How do fraternities and sororities members vote?

[Skill and Chance]

As adult alumni, former fraternity members are probably Likely R and former sorority members are probably Lean R today.  This is a substantially more conservative demographic than college students writ large, and also skews Southern/Midwestern.   

Now, for people currently in fraternities/sororities, I would say tilt R for the guys and tilt D for the ladies.  Again, these are disproportionately the most culturally conservative college students.

[Skill and Chance]

I am agreement with both of the replies above. My own observation in college and since has been that fraternities and sororities actually draw from fairly different pools. Fraternity membership tends to be driven more by similarity in interests; young men join fraternities because they're interested in the frat lifestyle, et cetera, and this tends to be less dependent on their ethnic or socioeconomic background. By contrast, the decision to join a sorority for young women tends to be much more motivated by who they are; if you're a white woman whose family has money, then it's the thing to do, especially if your mother was in a sorority. The result is that sorority members tend to have more diverse interests; my own interests when I was in college put me in touch with many sorority members but few fraternity members.

Some of this probably stems from the fact that Greek life is asymmetrical. Fraternities throw wild parties at which crazy shenanigans happen. Sororities do not. Guys in fraternities are expected to make drunken fools of themselves and it is heavily encouraged. Sorority girls are supposed to have a good time but conduct themselves "well" and the consequences of failing to do so are far graver than they would be if the same offense were committed by a male frater. This creates a selection bias. I knew plenty of "quiet, bookish" girls who were in sororities but that type of guy is basically absent from Greek life.

There's also the fact that all-male and all-female organizations have very different implications. An all-male group of any kind is basically by definition reactionary. But all-female groups can be reactionary or quite progressive depending on the context. So you have sororities at places like Ole Miss that are basically just blonde former cheerleaders and pageant queens majoring in communications and determined to get an engagement ring on their finger by senior year or soon after. And you have sororities at places like Northwestern that raise money for Planned Parenthood and are very active in sexual assault awareness and gay rights and whatever else.

Somewhat predictably, no one has mentioned the very distinct institution that is historically Black fraternities and sororities. Those play an enormous role in Democratic politics in African-American constituencies. Candidates will often go to chapter meetings to campaign (unlike white Greek organizations, black Greek organizations basically continue functioning as social clubs/community service organizations for their members after they leave college and are well into adulthood) and if you are a young black person who wants to be involved in politics by working your way up through the traditional black Democratic power structure, it would be a great benefit to you to join one of these groups in college. Last year, the Alpha Kappa Alpha sorority played a big role in Democratic GOTV efforts and I often saw their pink-and-green signs in people's yards.

I would dispute this.  Think of early 20th century labor unions and modern organizations of gay men, for example.  Also, while frat boys lean conservative compared to other college students, I wouldn't describe them as reactionary at all.  It's much more of a hedonistic, libertarian Las Vegas/Florida resort kind of conservatism.  Frat boys definitely aren't trying to reverse the sexual revolution! 

[Skill and Chance]

When I was at Vandy, the student newspaper did a political poll and divided it by Greek participation.  The results (with the caveat that it was an opt in poll by a progressive-leaning campus newspaper) were something like this:

(1-7 scale, 1 being very liberal and 7 very conservative):

Frat Guys: 4 (moderate)
Sorority Girls and non-Greek Guys: 3 (somewhat liberal)
Non-Greek Girls: 2 (liberal)

I think this was in 2016.

It's interesting because despite the overall college+ and non-college trends, it seems very likely that frat guys trended R in 2016 and 2020.  Trump is much more of a partier than Romney!  IDK about 2022, though.  Frat guys are probably a big component of the 25% of R's who are at least somewhat pro-choice.

[Skill and Chance]

It's interesting because despite the overall college+ and non-college trends, it seems very likely that frat guys trended R in 2016 and 2020.  Trump is much more of a partier than Romney!  IDK about 2022, though.  Frat guys are probably a big component of the 25% of R's who are at least somewhat pro-choice.

I am reasonably confident that this is false. Once you move past crude stereotypes about partying, this is a demographic we would expect to have had a large Democratic swing since 2012.

I have been trying to get a journalist friend of mine to do a story on political changes in the Greek community. It seems like a topic worth exploring, in large part because there are so many stereotypes.

The more I think about it, 2016 is a stretch, but I do believe the closed resorts->Trump swing in 2020 extended at least somewhat to them.