Gold price settles above $2,020 as Yellen warns of 'constitutional crisis' if debt cap not raised

Gold price settles above $2,020 as Yellen warns of 'constitutional crisis' if debt cap not raised:   With the chance of a U.S. default in a matter of weeks, U.S. Treasury Secretary Janet Yellen warned that if the debt ceiling is not lifted, it could trigger a 'c...