When asked about the former Trump primary rival's choice for president, Manigault told the Independent Journal Review that, "It's so great our enemies are making themselves clear so that when we get in to the White House, we know where we stand."
Graham pledged to support the eventual GOP nominee during his bid for the Republican nomination, but he and Trump butted heads constantly during the race and at one point, Trump gave out Graham's cellphone number to supporters at a campaign rally.
"If (Graham) felt his interests was with that candidate, God bless him," Manigault told the Independent Journal Review.
>> Related: Jeb Bush won't vote for Trump: 'I cannot support his candidacy'
Graham isn't the only Republican who changed their minds after promising to vote for the Republican nominee.
Former Florida Gov. Jeb Bush announced in May that he wouldn't vote for Trump. Ohio Gov. John Kasich wrote in the name of Sen. John McCain, R-Arizona, for president.
Trump was elected president Tuesday after securing the 270 electoral votes needed to win the election. He will be sworn in as president on Jan. 20.