All joking aside (and to be very jaded), the reason Harris held so many extreme liberal views when she was just the VP was because she thought she would need to court the Dem base in a primary fight before she ever got the nomination. As luck would have it however, she was able to skip over that entire process. Now, as the nominee, she can jump straight to being a moderate, mainstream type of gal.
Let's be honest. That is the game all presidential candidate always play. Trump did it. Biden did it. Trump is doing it again. And so is his running mate who used to be a feral anti-Trumper. Harris is doing it. etc...
Whatever Kamala's been doing the last few weeks, she should just go on and continue doing it. If the corporate journalists and right wingers freak out over it, that is their problem.