President Trump's immigration policies are on the line and many are hoping Joe Biden will follow through on pledges to help immigrants and asylum-seekers if he wins the election.
While some residents of the northern Mexican city have said "all migrants are welcome," a group of protesters this weekend demanded they be kicked out.
An average of 44,000 people were displaced every day, or one person every two seconds, according to a United Nations report. Conflict is the biggest factor driving displacement.