Shared account for MH and Campaigns

Shared account for MH and Campaigns

I need to have a shared account between Marketing Hub and Campaigns. I dont mind if my current MH account is deleted and recreated. 

Please let me know how we can make this happen since it is critical that if I run a Lead Nurturing campaign from MH or if I run a dedicated email campaign from Campaigns, I should be able to see both the data in the CRM.