Federal regulators should stop thumbing their noses at a year-old law and enforce limits on excessive speculation in oil markets, Sen. Bernie Sanders said on Tuesday. He urged the Commodity Futures Trading Commission to hold an emergency meeting. Secret data collected by the commission showed that Goldman Sachs, Morgan Stanley and other banks and hedge funds dominated oil markets in 2008 when prices rose sharply and to more than $140 a barrel. The records - first made public by Sanders - shed light on the role of speculators at a time when oil prices soared and the pump price for gasoline spiked to around $4 a gallon.Download Senator Sanders letter to the Chairman of the Commodity Futures Trading Commission below;