Prevent how? No one has a right to travel? On what basis?

Still no constructive rational discourse here. You seem to think we have a King, not a President, and that we are only subjects, not free people. I don't like Graham any more than a slug on my sidewalk, but until he is indicted, charged, tried, judged and incarcerated for a crime, he is as free as any of us. Or do you disagree?

And again with the snarky bad-mouthing. But, what the hey---you gotta stick with what you know how to do.