I heard someone on MSNBC speculate on that several months ago, turned out there was nothing to it. The only difference I can see between the transports those Governors are facilitating and the ones the US Government are responsible for is that the Feds are bringing them into cities at night in hopes no one will notice.
I've read that last year there were 2,000,000 migrants processed by CBP personnel, not counting those who evaded capture, and a similar number is expected this year. Does anyone really believe those TX and AZ border areas can absorb those numbers while Martha's Vineyard can't accommodate 50?