A 2006 segment on 'The View' helps explain how Trump and O'Donnell's bitter rivalry with one another first started.

If President Donald Trump, like Richard Nixon, kept an enemies list, one seemingly unlikely name would be right at the top — not a lawmaker or one of his predecessors, but the funny lady who tossed Koosh balls into the audience, and who speaks in frank and unadorned language about her disdain for him.

Ana Navarro lashed out at the president, days after a representative for the White House issued a statement to EW criticizing her as well.