The Democratic mayors of Chicago and Denver gave a joint interview Sunday in which they acknowledged the “crisis” on the southern border but placed much of the blame on Texas Gov. Greg Abbott ® for creating more “chaos” in his approach to migration.

In an interview on CBS News’s “Face the Nation,” Chicago Mayor Brandon Johnson and Denver Mayor Mike Johnston stressed their frustration with the surprise arrivals of buses and airplanes in theirs and other cities.

Johnston said he has not considered turning away buses — as some other cities’ mayors have – but asked that city officials be notified that the buses were coming before they arrived and that the buses arrive during regular working hours and at regular bus stops.

“All we want is a system that is humanitarian for both the new folks that are arriving and for our cities and our city employees. And so, we understand there will be an inflow, we have already had 35,000 migrants arrive to Denver, we’ve successfully helped them integrate into the country here,” Johnston said. “What we don’t want is people arriving at 2:00 in the morning at a city and county building with women and children outside in 10-degree weather and no support.