Donald Trump is not a fan of Rep. Paul Rayn's budget. In fact, he thinks it's "catastrophic." The Mitt Romney surrogate told CNBC Tuesday that the budget could have a devastating effect on Romney's presidential campaign. "If they lose, it will be the single biggest reason why the Republicans lost: the Ryan plan," he said, clarifying that it's more the timing of the plan rather than its content that he disapproves of. "I think the worst thing [Romney] can do is embrace that budget if he wants to get elected," Trump declared.