Businessman Herman Cain told senior members of his campaign on a conference call Tuesday morning that he is reassessing whether or not to remain in the Republican presidential race.

The remarks came after Atlanta businesswoman Ginger White alleged a 13-year affair with Cain, who says he knew White but called her just a friend.

Cain was already scheduled to make a foreign policy speech at Hillsdale College in Michigan on Tuesday evening. Now, everyone will be watching.

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Cain reassessing his candidacy

Who is Ginger White?