Between 150 and 200 students are expected to attend the first-ever Pride Prom at the Palm Springs Art Museum tonight.

The event is supposed to be a chance for lesbian, gay, bisexual and transgender students to enjoy a dance without worrying that their sexual orientations will be an issue.

The event happens to fall during a week when same-sex marriage and LGBT issues are dominating the national discussion.

So it’s little surprise that at least three of the desert’s progressive politicians — Democratic congressional candidate Raul Ruiz, Palm Springs Mayor Pro Tem Ginny Foat and Palm Springs Councilman Paul Lewin — are expected to attend tonight’s prom to show their support.

Ruiz said this week that he agreed with President Obama’s position that same-sex couples should be able to marry. And last year, Palm Springs council passed a resolution to formally support same-sex marriages.