It was the news that rocked the financial markets: Saudi Arabia is looking to buy oil in yuan. India, meanwhile, is reportedly looking at a deal to buy Russian oil in rubles or with their currency, the rupee. Oil has been priced in dollars for decades, and another currency competing with America's have some analysts worried this could spell economic disaster for the US. But Senator Ben Sasse (R-NE) talked on Fox News Sunday about how this situation is also a window into how we should respond to the Ukrainian crisis.

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