Bernie Sanders' real first name is Bernard. (But his insistence on being called "Bernie" initially caused some problems for newspapers like the New York Times, which historically had called candidates by their actual first name-- Charles, rather than Charlie, for example. But Senator Sanders instructed all the media outlets to refer to him as Bernie, rather than Bernard; that is why you only see him being called "Bernie Sanders" and not Bernard Sanders.) And interestingly, Senator Sanders does not have a middle name.
Bernie Sanders's birth name is Bernard Sanders.
Senator Sanders's father's name was Elias Sanders. His mother's maiden name was Dorothy Glassberg.
No, Bernie Sanders is not single.
Bernie Matthew's birth name is Bernie Matthew Rau.
Bernie Nicholls's birth name is Bernie Irvine Nicholls.
Yes, Bernie Sanders is left-handed.
Twiggy Sanders's birth name is James Sanders.
Jovoan Sanders's birth name is JoVoan Sanders.
Pharoah Sanders's birth name is Farrell Sanders.
Biff McGuire's birth name is McGuire, William Biff.
Keylee Sanders's birth name is Keylee Sue Sanders.
Shamar Sanders's birth name is Brandon Shamar Sanders.
Buck Sanders's birth name is Buck Henry Sanders.
Candice Sanders's birth name is Candice Marie Sanders.