CHARLESTON, S.C. — Newt Gingrich has moved to capture some Republican voters who lean toward Ron Paul and other Republicans who were Jack Kemp followers by naming two gold bugs to the Gingrich future team of advisers. The former House speaker says he intends to appoint investment banker Lewis E. Lehrman, famous in the Reagan era for his red suspenders and gold-standard advocacy, and Jim Grant, editor of Grant’s Interest Rate Observer, as President Gingrich’s Gold Commission - if and when of course Mr. Gingrich wins both the Republican nomination and the general election in November. Mr. Paul, a Texas...