Can't take the heat? Get out of the kitchen!
If what Carson (or any OTHER free citizen of this country) has to say rankles, then "O" only has to say so and (if he's able) make a denial or challenge. It's the bully pulpit and if ‘O’ doesn't recognize or comprehend how to use power (except to weigh in on BS celebrity arguments) then he shouldn't be ‘President’!!
Of course he had the right to say what he did and I am glad he did. On the other side Cal Thomas has the right to his opinion and that is no reason to suddenly start bashing him