"I will fight to ensure that every American is treated equally, protected equally, and honored equally," Trump wrote Tuesday. | AP Photo Trump issues 'pledge to the American people'

Donald Trump issued a "pledge to the American people" on Tuesday night via his Facebook page, vowing to treat all Americans equally and "reject bigotry and hatred and oppression in all its forms."

"This is my pledge to the American people: as your President I will be your greatest champion. I will fight to ensure that every American is treated equally, protected equally, and honored equally," the Republican presidential nominee wrote. "We will reject bigotry and hatred and oppression in all its forms, and seek a new future built on our common culture and values as one American people."


Trump has repeatedly insisted that he's a unifying candidate, despite polls that show him struggling to attract support from minorities. In the most recent Washington Post/ABC News national poll, for instance, he trails his Democratic opponent Hillary Clinton by 57 percentage points, 75 percent to 18 percent, among non-white voters.

Democrats have repeatedly cast Trump as a racist, with outgoing Senate Minority Leader Harry Reid calling him a "bigot who is clearly unfit for office" in comments last week. Even some Republicans, such as Illinois Sen. Mark Kirk, have criticized the GOP nominee as "too bigoted and racist" to be president.

Those critiques have tended to flare up when Trump makes racially charged remarks, such as his attack on the "heritage" of a Mexican-American judge presiding over a lawsuit related to his defunct Trump University, his call for a temporary ban on all Muslim immigration, or his claim that Mexico was sending "rapists" across the border.