Honestly, I think it’s partially that she’s never really believed in anything. She was a tough on crime DA until the George Floyd protests, and then she dropped that. She was a Medicare for All supporter until it looked like that would cost her with the donors, so she dropped that. She opposed Trump’s harsh immigration policy but was fine with Biden’s harsh immigration policy. She’s got no strong, principled stances, so when Biden tells her not to break with him, and her advisors tell her to campaign with Liz Cheney and Mark Cuban, she just does it.