A Litmus Test for the Litmus Test: Has Marco Rubio really changed his mind and abandoned the principles behind his old “Gang of 8” immigration amnesty bill in favor of a ‘secure the border first’ approach? Or has he simply changed tactics, preferring to cut the Gang of 8 bill up into pieces and pass them separately?

There’s a fast, cheap, simple test to find out the answer! It’s to ask Rubio this question:

You say the American people have to be shown that border security measures (like a fence, and the e-Verify computerized system for checking legal status in hiring) are in place and working before we begin debating what to do about the 11 million or more who are here illegally. But do you rule out any temporary, probationary or provisional legalization or authorization before the border security measures are in place and shown to be working?