President Donald Trump predicted he would appoint a total of four Supreme Court justices by the end of his first term, Axios reported Sunday.

Sources who had spoken to the president about the possibility told the online news media company it was "all about the numbers for him."

One source said Trump mentioned he had already replaced the seat left vacant when Antonin Scalia died early last year, nominating Neil Gorsuch to the position. When asked who the second justice he thought would leave, Trump mentioned rumors Justice Anthony Kennedy would retire.

The third justice the president thought would leave was Justice Ruth Bader Ginsburg, according to the source.

"Ginsburg," Trump reportedly said. "What does she weigh? Sixty pounds?" And the fourth justice Trump predicted would leave the Supreme Court was Justice Sonia Sotomayor.

"Sotomayor," Trump told the source, referring to the justice appointed by former President Barack Obama in 2009.

"Her health," Trump explained. "No good. Diabetes."

Sotomayor revealed earlier this year she suffered from type-1 diabetes since she was seven years old, admitting "diabetes is a constant part of my life."