KEY POINTS
  • President Trump's tax plan adheres to the "Mnuchin Principle" of helping the middle class, the Treasury secretary says.
  • The Trump tax plan was vague because the president wants to work with Congress on getting it done, Mnuchin says.
  • Mnuchin argues it'll take some time, but Trump's policy agenda would lead to "sustained 3 percent economic growth or higher."

President Donald Trump's tax-cutting plan aims to eliminate all loopholes except the mortgage interest and charitable giving deductions, Treasury Secretary Steven Mnuchin told CNBC on Monday.

He reiterated that the White House wants to provide relief for middle-income earners, not the rich.