In a tweet, Cruz connected a story and pictures of the massive crowd. "What Joe Biden and the Democrats see when they look at caravans of illegal immigrants: Future Democrat voters," he wrote.
According to Reuters, hundreds of Central American and Haitian migrants formed a new caravan Friday in the southern Mexican state of Chiapas, near the Guatemala border, and started walking north toward the United States.
The migrants said they wanted to leave Chiapas as they had not been given humanitarian visas guaranteed by Mexico or transferred to other regions of the country where they would have healthier conditions, Reuters reported.
The crowd of about 1,000 migrants, including many children, began walking from Tapachula, a city bordering Guatemala, to Mapastepec, about 62.1 miles away, where they intended to join another group of migrants, Reuters reported.
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Mexico's National Migration Institute (INM) began transferring hundreds of migrants Thursday to other parts of the country after they had spent months waiting for a response to demands for shelter or humanitarian visas.
The migrants were also given documents for a momentary legal stay in Mexico, enabling them to seek jobs — and obstructing a similar walk toward the U.S. border, Reuters reported.
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Those who were not transferred elsewhere or got humanitarian visas joined those heading toward the United States, the news outlet reported.
"We need to work to support our family, and that is why we decided to do this, to leave in the caravan," one Haitian migrant, accompanied by his wife and family members, who declined to be identified, told Reuters.
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Luis Garcia, one of the caravan organizers, told the news agency about 1,500 people are assumed to press north from Mapastepec on Tuesday. In the past, migrants have declined to accept.
The National Human Rights Commission last week said it found in 2020 at least three Haitian refugee seekers in Mexico were sent back to their country.
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In March, Cruz was a lead voice of outrage at illegal immigrants' crossings at the southern border — and asked the Biden Administration to return a Trump-era policy demanding migrants file for asylum and wait in Mexico while their claims are filed.
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After attending a facility where migrants were kept after crossing in Mission, Texas, Cruz reported seeing toddlers and other young children "lying side by side, touching each other" and covered by silvery emergency blankets.
"The Biden Administration wants to hide what is going on here," he said at the time.