He is a convicted FELON. Iowa is just the tip of the iceberg.
People used to say Ted Bundy was such a nice young man,.
Convicted felons give testimony in court that is deemed credible by the triers of fact every day. Of course, Smith deserves some extra scrutiny, and his BC has certainly received that, as would any such serious claim about presidential eligibility regardless of the source.
Whether Smith is a convicted felon has no bearing on the authenticity of the BC which, under the FRE, can only ultimately be authenticated by Kenyan officials.
I believe this can only happen if/when the protection Obama is getting in both the US and Kenya is lifted.