Can a cron job kick off a mailing submitted by a non-superadmin

admins cannot send mails but can create the campaigns.
Can I use a cron job to send admin submitted campaigns?
Or does a campaign still have to be separately submitted by me as superadmin?

When processing the queue, either through the browser or as a cron job, all submitted campaigns will be sent. A cron job is not related to a specific phplist admin.