It makes no sense to ban travel from places where virus spread has slowed to a much lower pace than it’s already circulating here, especially when we’re not banning travel from some of the places in the world where the virus is spreading fastest.
The China travel ban failed because the CDC blew its implementation and the Europe travel ban came too late. Those were policies that might have helped if implemented at the right time and in the right way back in January and February. But they no longer make sense in June.