If the first new person to become White House Press Secretary after Issuance is Jason Miller, then the market resolves to Yes. The market resolves based on who actually assumes the office of White House Press Secretary, not who is elected or nominated. Acting or interim appointments count as holding the position if they formally assume the office. The person must be different from whoever held the position at market issuance - if the same person continues in office through the expiration date, all markets resolve to No. This market will close and expire early if a new White House Press Secretary takes office.