President Obama called Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE early Wednesday morning after the billionaire's stunning victory in the presidential election, according to NBC News.

Kellyanne Conway tells me President Obama called Trump tonight. She did not know what they said. — Katy Tur (@KatyTurNBC) November 9, 2016

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Trump campaign manager Kellyanne Conway told the network she did not know what the two men said to each other.

Trump's victory was a devastating blow to Obama, who campaigned hard to elect Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE.

Obama repeatedly warned that Trump was "uniquely unqualified" to serve as president due to his erratic temperament and comments about women and minorities.

But the president's warnings ultimately weren't enough to help Clinton win.