President Donald Trump vowed to cut corporate taxes and regulations during a high-profile Monday morning meeting with Tesla CEO Elon Musk, Under Armour CEO Kevin Plank and other business executives.

The newly minted president tweeted early Monday that he had a "busy week" ahead with a focus on "jobs and national security," and teased his meeting with "top executives" like Musk and Plank to discuss "manufacturing in America."

In remarks open to members of the media, Trump addressed the business leaders in the room and vowed to cut taxes "for both the middle class and for companies" while axing existing private sector regulations that he said have "gotten out of control."

"Now, we're going to have regulation. And it'll be just as strong and just as good and just as protective of the people as we have right now," Trump said from the White House. "But you're going to get such great service. There will be no country that's going to be faster, better, more fair, and at the same time protecting the people of the country."

Though he didn't specify exactly what would be cut, he said his administration thinks it can streamline the government's involvement with the private sector by cutting regulations by "75 percent – maybe more."

Notably, he indicated in a tangent about environmental regulations that "some of that stuff makes it impossible to get anything built."

"When you want to expand your plant ... or when Dell wants to come in and do something monstrous and special, you're going to have your approvals really fast," Trump said.

Joining Trump, Musk and others Monday morning were senior officials from Lockheed Martin, Dow Chemical, U.S. Steel, Dell Technologies, Johnson & Johnson and Whirlpool.

After Trump won the presidential election, he held a similar meeting in December with Musk – who recently became a member of the president's team of private sector advisers – and tech executives like Alphabet CEO Larry Page and Apple CEO Tim Cook.

At that meeting, Trump made similar promises about corporate tax reform, though the public portion of his remarks related to government regulation weren't nearly as targeted.

Republican lawmakers have indicated they hope to prioritize stripping away the Affordable Care Act and key components of the Dodd-Frank Act, both of which passed under former President Barack Obama.