Someone on another site said, Obama pardons a known and proved traitor to his country, and the Left cheers. Trump pardons a patriot Sheriff with 30 years of public service, and the Left goes apoplectic.
The fact that McCain is seething with anger about this, tells me that he had some interest in it. He with his buddy Obama set the whole thing up. And McCain can't stand that it didn't work.
Arpaio's "crime" was enforcing laws that the Feds refused to enforce. So now, McCain has either the gall or the stupidity to say that Trump has no respect for the rule of law because Trump pardoned a Sheriff that was enforcing the 'rule of law'. But, of course, we all know that logic means nothing to Liberals like McCain. So, what can you do? Just let him fret and rant until he gets it out of his system.
There is not much McCain can really do to Trump these days. McCain's power is severely diminished since everyone knows he is a lame duck.