Story highlights "Omarosa Manigault Newman resigned yesterday to pursue other opportunities," Sanders said

Manigault Newman is one of Trump's most high-profile African-American supporters

Washington (CNN) White House aide Omarosa Manigault Newman, a former contestant on "The Apprentice," plans to leave the White House next month, according to a statement from press secretary Sarah Sanders.

Manigault Newman, one of Trump's most high-profile African-American supporters, will leave one year to the day after Trump took office, Sanders said.

"Omarosa Manigault Newman resigned yesterday to pursue other opportunities," Sanders said. "Her departure will not be effective until January 20, 2018. We wish her the best in future endeavors and are grateful for her service."

CNN has reached out to Manigault Newman but has not heard back.

"Thank you Omarosa for your service! I wish you continued success," President Donald Trump tweeted Wednesday night.

Thank you Omarosa for your service! I wish you continued success. — Donald J. Trump (@realDonaldTrump) December 13, 2017

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