We’re about an hour away from polls closing in California, which has one of the most diverse in the country. One group that’s drawn recent attention from both parties is Asian-Americans – a segment of the electorate that is diverse in its own right, encompassing multiple national and linguistic backgrounds, and including recently naturalized citizens as well as those whose families have been in the U.S. for generations.

There are a few things that are interesting to watch:

One is that, as with other groups that have historically been marginalized, there are a number of Asian-American candidates running for office in 2018.

Additionally, this demographic group has been somewhat of a political enigma. A 2016 survey showed that 2 in 5 Asian American voters didn’t identify with either the Democratic or Republican parties. (Here’s some data about partisan identification among white, black and Latino voters for comparison.)

Political scientists have studied how to mobilize Asian American voters. Perhaps most intriguingly, Ph.D. candidate Sara Sadhwani found that these voters in key California districts (39, 48) supported Republican House candidates in 2016, but cast their presidential ballots for Hillary Clinton. In a year with “no purple states,” that makes this set of voters interesting to parties and to political analysts.