Can I force pip to reinstall the current version?

Yes, you can force reinstall pip the current version below is the command for the same:-

    pip install --upgrade --force-reinstall 

When you are upgrading the pip then you should reinstall all packages even if they are already updated. In that case, you should ignore the installed packages (reinstalling instead). However, you can use the following command to ignore the installed packages.

pip install -I 
pip install --ignore-installed