WASHINGTON -- Nikki Haley will suspend her White House bid on Wednesday, according to The Wall Street Journal, citing people familiar with her plans.

Haley, a former South Carolina governor and former US ambassador to the United Nations, is expected to announce the decision in a speech on Wednesday morning, a day after the "Super Tuesday" primaries, in which she won only Vermont among 15 states that held Republican contests.

Haley won't issue an endorsement in that speech, the report said. She will reportedly encourage former US President Donald Trump, who is on his path to becoming the Republican presidential nominee again, to earn the support of Republican and independent voters who backed her.