Nikki Haley dismisses speculation that she will challenge Mr Trump for the White House.
Nikki Haley resigns as US ambassador to UN and will leave post at year's end
Nikki Haley has resigned as the US ambassador to the United Nations and will leave her post at the end of the year, in a move that stunned allied diplomats and other senior officials.
Neo-Con Nikki Haley Resigns: "the best news for Trump supporters since Brett Kavanaugh"
HALEY'S LETTER TO PRESIDENT
— Glenn Greenwald (@ggreenwald) October 9, 2018