Adding a campaign to a lead

Adding a campaign to a lead

I have an assistant (role) set up to handle leads.  Part of the tasks are to assign the campaign to the lead in the lead tab.  When clicking ADD CAMPAIGN, it doesn't show any.  However, when I am logged in as admin, I can see all the campaigns and can associate the campaign with the same lead.  What is amiss?  I checked the roles/permissions and have everything "campaign" related selected for this assistant role.