Not sure if this counts as a notable resignation or not, but he's pretty young to be leaving the festivities (33 years old)…

Jon Applebaum

Deputy Minority Leader DFL House Caucus - Minnesota

RELEASE: Rep. Jon Applebaum will not seek reelection to the Minnesota House in 2018

https://www.house.leg.state.mn.us/members/pressrelease.asp?pressid=19592&party=1&memid=15427