Van down! What's this part?

[kestrel]

Hey Folks - Driving home from school last night and my van stopped responding to gas, then died. I managed to get it home, but it can't idle for long before shutting off. Smells like weird gas mixture. Not sure if this is related, but also makes a thumping noise when wheel is turned hard to the right. Even in park. Opened her up and found this obvious problem in the attached picture. I'm no mechanic, but maybe I can do this on my own? What is this broken part and is it an easy fix?

Thanks in advance,
Kestrel