The Caribbean nation was free of cholera until a group of United Nations peacekeepers accidentally dumped infected waste into a river while providing relief after the devastating 2010 earthquake.
Organizers told media that the migrants would be camping immediately outside the crossing in groups of 20.
Led primarily by students, protests broke out last week in response to a government-backed pension reform.
Ricardo Anaya and the PAN have denounced the investigation as a plot by current president Enrique Peña Nieto and his party.
The favorite to win the presidency is Mario Abdo Benítez, the candidate for the ruling conservative Colorado party.
The leader of the Catholic Church drew anger in Chile during a visit to the country in January, when he defended Bishop Juan Barros, who allegedly hid sex crimes by a priest.
The arrest was for allegedly conspiring to traffic cocaine and was ordered after a New York grand jury handed down an indictment on Jesús Santrich and three other co-conspirators.
Although this was one of the worst jail tragedies in Venezuela’s history, the country has seen similar cases in recent years.
Eight Haitian and Salvadoran immigrants filed a lawsuit against the Trump administration on Thursday.