Corker said congressional tax committees seem to be falling short of their goal to eliminate $4 trillion in tax breaks to prevent the Trump plan from adding to the federal deficit.
"They're having great difficulty just getting to $3.6 trillion," said the Tennessee Republican, who has vowed to vote against tax reform if it increases a federal debt load that stands at more than $20 trillion.
Ohio's Republican governor, John Kasich, told Fox News Sunday that spending on entitlement programs such as Medicare, Medicaid and Social Security should also be reviewed as part of the effort to pay for tax cuts.
"It may be separate from the tax bill, but it needs to happen," Kasich said.
This article was provided by Reuters.