It’s Washington’s newest guessing game: Who is the unnamed Biden family member who got proceeds from a $3 million wire to Hunter Biden associate John “Rob” Walker weeks after Joe Biden left the vice presidency in 2017? House Oversight Committee Chairman James Comer (R-Ky.) first revealed Monday that bank records obtained via subpoena implicate a “new Biden family member” in the panel’s probe of the first son’s alleged influence-peddling scheme. Comer is expected to reveal the person’s name at some point, but has not yet announced specific plans to do so, leaving the door open to speculation about who else...