A group of Democratic Senators threatened to block a multi-million dollar US arms deal with Saudi Arabia, unless the kingdom ups oil production and helps cut soaring gasoline prices. The senators introduced a resolution of disapproval on the arms sale, as President George W. Bush prepared to head for Saudi Arabia, partly on a mission to contain runaway oil prices. "We are saying to the Saudis that, if you don't help us, why should we be helping you?" said New York Democratic Senator Chuck Schumer. "We are saying that we need real relief, and we need it quickly. You need our arms, but we need you to cooperate and not strangle American consumers."