The Fed didnt call anyones bluff.
The Fed has been derilict in their duty to protect the border. Case closed.
According to Rick Perry's OWN intrepretion of the 10th amendment (not MY interpretation, by the way), the 10th amendment stands for "States Rights", and the federal government has NO say over anything NOT directly referenced in the Constitution, instead we should "send it back to the states" to deal with and completely wash our hands out of it.
"Protect the border" is NOT listed as a federal responsibility in the constitution (yes, it does say the feds shall "protect states against invasion", but it also says feds shall ensure that NO person is "deprived of life" and that hasn't stopped the "States Rights!!!" crowd from insisting the feds can do nothing to regulate abortion, whereas states can legalize abortion for any and all circumstances)
Going by Perry's own logic then, "states rights" means its the responsibility of the Texas government to secure the border, not the Feds.
As Rick says, you either believe in "states rights" or you don't. He seems to think states have the "right" to do ANYTHING they want aside from securing their own border. He can't have it both ways.