Sen. Bernie Sanders and Sen. Ted Cruz debated over the GOP's tax plan in a CNN town hall debate. The polarizing topic has been at the center of Capitol Hill. In several instances, the debate went off the rails and the audiences erupted in laughter. Sen. Bernie Sanders went head-to-head with Sen. Ted Cruz in a CNN town hall debate on the Republican Party's tax plan on Wednesday night. The polarizing topic has been at the center of Capitol Hill, as lawmakers have attempted to reform the tax code.