Former acting DHS Secretary Chad Wolf said he does not believe the Biden administration is "actually competent enough" to administer the new immigration rule.
The facilities at the U.S.-Mexico border remain overwhelmed.
The Kansas operation follows the arrest of 43 suspects in an Arizona sex trafficking operation late last month
The policy has been unofficial until now
The caravan's first stop will be in Tuxtla Gutiérrez, where the migrants intend to hand in their documents to try to continue without obstacles to the northern border
The work will take place in sections in California, Arizona, and Texas
The total apprehensions for May marked a 23-year high
A woman and two children, an eight-year-old boy and a two-year-old girl, from Honduras were also found
The administration is implementing the plan at two detention centers in Texas as a kind of pilot program and will then expand to other immigration centers
40,000 to 50,000 migrants are waiting in Mexican shelters near the border for their opportunity to enter the united states
While they made it up the wall, they could not come back down