Students should also be aware of the potential for others to challenge their right to vote at a polling place.
For example, in 2004, polling places near the University of Pittsburgh were slowed down to the point of voters waiting hours in line due to political operatives challenging every young person’s right to vote. Pennsylvania requires the challenged voter to have another voter sign an affidavit verifying the challenged voter’s identity and residency.
https://www.brennancenter.org/publication/voter-challengers has some more information on state laws regarding challenging someone’s right to vote.
If this is a concern, students who register to vote at their colleges should be prepared to handle political operatives challenging their right to vote, or consider using an absentee ballot. Actually, anyone who lives in a place where elections may be close should consider doing that.