Apologies for being late with a couple of answers.
Originally Posted by MrX
Didn't the Supreme Court, in Heller or McDonald, say that any one with DV conviction still would not be able to own a gun?
No. Scalia did not say anything at all about that. He did write that long standing laws that prohibited felons from possession were presumptively constitutional.
Someone convicted of a misdemeanor domestic violence violation is not a felon.
Originally Posted by TexasFats
I mean, what other misdemeanor carries with it lifetime loss of a constitutional right?
Try a conviction of common law battery that carried only a small fine, until years later the State changed the sentence to an indeterminate sentencing of up to 3 years. See Schrader v. Holder
for that one.