Haley doesn't have a glowing past and would struggle to conquer the racism and sexism of her own party...why would the Biden WH be scared of her?
Because she's left of MAGA?
Nikki Haley will not make it out of the Republican primary.
That being said, if she had a chance in hell of making it out of the primary, the Biden administration would rightfully be very scared of facing the Haley we saw in that first Republican debate. She sounded normal, reasonable, and is clearly well informed and qualified for the role.
But that is going to be the quagmire for the post-Trump Republican party. The things you need to do and say to make it out of a nationwide GOP Primary also make you toxic for the general election.
Just look what DeSantis has done to his brand nationwide just to make it out of the primary.
I still think candidates like Sununu, Hogan, and DeWine would be huge problems for Biden in a General. But none of them are rabid enough to make it out of the Primary.