White House chief economic adviser Larry Kudlow said Sunday key Trump officials were putting plans in place to undo parts of the $1.3 trillion spending bill passed by Congress in March.

"There's planning in the White House. My friend OMB director Mick Mulvaney, I'm an ex-OMB guy, I feel his pain," Kudlow told "Fox News Sunday," referring to the head of the Office of Budget and Management.

"We are looking at an rescission 'enhanced' package, I'm not going to use numbers, this is all around town," Kudlow continued, referring to a way the Republican majority in the Senate can rescind authorized spending and avoid a Democratic filibuster.

Kudlow said congressional Republicans were warming to the idea of rolling back aspects of the historic omnibus spending bill, which was slammed by many conservative political pundits for providing funds to too many pricey liberal requests on domestic spending.

"I think the Republican Party on the Hill has finally figured out it's really not a bad idea to trim some spending, because after all spending can lead to deficits, and spending interferes with the economy, and President Trump is a deregulator and a tax cutter," he said.

"We want and much more modest government role," he explained.