Political science summer programs

I was nominated for Girls State and was really excited about potentially going but I was chosen as the alternate :(. I’m friends with the girl who is the delegate so I know odds are very very low she will not decide to go, so unless anyone knows some other way to get into GS I feel like I’m out of luck. Are there other summer programs or even ones during the school year that offer experiences like GS that I can apply to? Anything political science related is good but specifically things that simulate the political process like GS, where students do elections and legislating/work to create a mock-government? I’ve looked into NSLC but I don’t know if I can make the dates for it. It sucks to be so close but so far from an experience that I feel would be so relevant to what I’m interested in.