The measure would legalize marijuana and also allow for sweeping pardons of low-level offenders.
The state that he represented in the Senate is now commemorating “Barack Obama Day” for the first time.
The legislation is meant to deter a family member from returning a firearm to a relative whose gun license has been revoked.
The honorary holiday commemorates the former president's birthday.
Three Republican governors have vetoed automatic voter registration bills in the past two years.