Senator Ron Johnson said that trade disputes needed to be resolved in order to "bring certainty back to the economy."
"Saudi Arabia has engaged in acts that are simply not acceptable," Republican Senator Jim Risch said.
"I would hate to see it," Republican Senator Ron Johnson from Wisconsin said. "I would prefer not, primarily because, if we do that, it's going to go to court."
Republican U.S. senators locked in close races could lose their seats over opposition to raising wages.
Gov. Jay Nixon declared a state of the emergency after a week of protests surrounding the fatal shooting of Michael Brown