A recent study by the liberal Center for Budget and Policy Priorities found Corker's proposal would result in $1.3 trillion in cuts to Social Security and more than $800 billion in cuts to Medicare.
Corker disputed those numbers, but said reducing spending on popular entitlement programs is going to be necessary. When asked if his proposal would translate to major cuts in entitlements, Corker insisted it was necessary.
"Yes, I agree that the Corker CAP would cause Congress to have to do the things that we need to do to be responsible," he said.
Corker emphasized his plan wasn't about spending less but rather reducing projections.
"Are we going to be spending under the Corker CAP less money on Medicare in 2022 than we are today?" he said. "No, we're going slow the growth of it by reforming it, which by the way every thinking person in the world knows that we have to do."