Trump has made the assertion about Article II several times. This claim is, of course, false.

Trump has also derided the Emoluments Clause of the Constitution as “phony.”

The full text of Article II can be found here.

The Washington Post – While bemoaning Mueller probe, Trump falsely says the Constitution gives him ‘the right to do whatever I want’
Newsweek – ‘Article 2’ trends after Trump falsely claims it grants him unlimited powers as President
Newsweek – Trump insists the Constitution’s Article II ‘allows me to do whatever I want’
Wikipedia – Article Two of the United States Constitution
Senate.gov – Constitution of the United States, Article II