For the same reason. The MSM. They hectored anyone who dared to question O's eligibiilty from day one. The old Nuts and Sluts smokescreen. By now, the public believes in the "nuts" part of that. Without anyone ever really being allowed to get the evidence out there. It will be the same with Gun Walker, although in that case some low level DoJ or BATFE flunkie will probably get thrown under the bus, and O will be deemed blameless, again with no evidence that he is or isn't.
Melson aint stupid.
He has ducked the Gov lawyers already and their trappings