BOSTON — Massachusetts voters hoping to cast a ballot for presidential candidate Charlie Baker will have to set their sights on someone else.Baker says he won't be seeking the Republican nomination for president in 2016 — or ever.Baker told reporters Friday that he's just not interested in running for the White House.To drive home the point, Baker noted that his wife Lauren, who was standing in the governor's office during Friday's press conference, would vouch for his sole focus on Massachusetts.