First lady feud: Here's the history of Trump's battling wives

Ivana Trump, President Donald Trump's first wife and the mother of his three eldest children, claimed on Sunday that she's the real "first lady."

Melania Trump, Trump's third and current wife, fired back on Monday.

"There is clearly no substance to this statement from an ex," Melania's spokesperson said in a statement. "Unfortunately only attention seeking and self-serving noise."

Ivana is currently promoting her most recently book, "Raising Trump." The author and businesswoman also recently had some harsh words for Trump's second wife, Marla Maples, calling her a "showgirl" and a "nobody" in an interview with Page Six.

This is far from the first time that Ivana, Maples, and Melania have clashed. Here's the history of the president's wives public disagreements.