Donald Trump has clearly struggled to adapt to the new presidential race against Vice President Kamala Harris , and New York Times reporter Maggie Haberman says there are two things that are rattling the former president.

Number one, shes closed the polling gap with him in a pretty short amount of time, and he had gotten very used to running against Joe Biden . That was comfortable for him, Haberman told CNNs Anderson Cooper on Tuesday.

He knew what the line of attack was, and his campaign had spent a lot of time and money on it. But she is a woman, and she is a Black woman, and both of those factors have proven pretty challenging for him in the past.

His allies will say he is an equal-opportunity offender and he goes after everybody and its certainly true that he insults a wide variety of people but he has seemed to really struggle with women opponents, women critics and particularly Black women who are critics, she added.

In the weeks since President Joe Biden ended his candidacy and Harris took up the mantle, Trump has questioned Harris racial identity , used several bizarre nicknames for her, told easy-to-debunk lies that footage of her massive rally crowds were created with artificial intelligence, and strangely compared her appearance to that of his wife, Melania Trump .

According to a Saturday New York Times report by Haberman and Jonathan Swan, the Republican nominee has also called his Democratic rival a bitch and nasty in private.