Some states like Nebraska have vote per congressional district, but big states like Texas, California, Washington, Florida are all or nothing.
A republican in Washington has almost no impact on final outcome since its been blue for eons. Vice versa for democrat in Texas.
The way we count votes in US is not a true democracy. It’s a very weird counting game. In addition every state has its quirk of when and how they count votes (esp mail in votes).
We really need to evaluate our election process.