Data import is idempotent, meaning importing the same file over and over doesn’t do anything. Only when imported data is different from existing data is a database write performed.
./manage.py import_bios <filename>
Import candidate bios. Do this first.
Do any of these next, in any order.
./manage.py import_calendar <filename>
./manage.py import_education <filename>
./manage.py import_offices <filename>
./manage.py import_phones <filename>
./manage.py import_urls <filename>