What is the unitary executive theory and why is it considered dangerous?

The unitary executive theory is a constitutional interpretation that vests all executive power in the president, suggesting no other part of government can operate outside presidential purview. Barbara McQuaid explains this is dangerous because it allows a president to interpret and enforce laws according to personal preference, even if those interpretations are unethical or illegal. Rather than following the rule of law, this theory centralizes power in the White House, essentially stating that 'if the president says this is how we'll interpret this law, then that's what goes.' This undermines the traditional checks and balances of American democracy.