Charles Krauthammer called tax reform the "single most important initiative" that President Trump could complete during his term.

Krauthammer nodded to statements made by Treasury Secretary Steven Mnuchin on Monday, in which the former banker stressed the importance of slashing tax rates and allowing taxes to be filed on something as little as a "large postcard."

"Mnuchin's middle-income tax cuts are Trump's priority," Krauthammer said.


Brooklyn NY Prosecutor to 'Minimize Immigration Consequences' for Convicts

DETAILS: FBI, CIA Heads Huddle at Secretive New Zealand Conference

Drexel Faces Backlash From Donors, Students Over Professor's Offensive Tweets


"Trump ran as a businessman," he said, adding that his background alone helped make tax reform a marquee issue for his presidency.

He said the responsibility to repeal and replace ObamaCare falls largely to the Congress because crafting legislation is more in their wheelhouse.

Looking back at Trump's term thus far, Krauthammer said tax reform would still trump successes like the installation of Justice Neil Gorsuch and "putting the world on notice" with his actions on the global stage..

"The key is going to be tax reform," he said.


Dem Rep Reportedly Tells 11-Year-Old Trump Is More Dangerous Than A Terrorist

DNC Chair Slammed for Continuing Anti-Trump Profanity on 'Unity Tour'

Tucker: Dems Worried Border Wall Could Stop Flow of Cheap Labor, New Voters