“Gold is a barometer of the common stock of a country, and right now gold is sniffing out weakness in the management of the United States as a business,” said Mr. Sinclair, 65, a lifelong Republican who twice voted for President Bush. “Iran is becoming a nuclear power. The chairman of the Federal Reserve is on a puppet string controlled by the White House, and there is no such thing as a strong-dollar policy when the dollar is heading south.”