How do I include a journal article draft in my dissertation? I am writing up my dissertation, and one of the chapters is a final draft of an as-yet unsubmitted journal article. 

I know with published works, I just get the copyright from the journal if needed, and can include the reprint as is in my dissertation, but how do I include a draft?
  The version of the draft as it stands now is essentially what is going to be submitted, verbatim. Which means if I defend first, the work is technically published in my dissertation. 
  I defend in 3 weeks. I was going to submit right after. Is this doable? We're not even 100% certain which journal we are submitting to.

Thanks for the help!
This is actually how many "sandwich thesis" dissertations are actually structured, my own included. Generally speaking, I've seen them structured like so:


Background, literature review, sections on data sets, and other material that will matter to each and every chapter under consideration, and is likely more detailed than you would find in a paper.
Each "paper chapter" essentially existing in it's free-standing, ready to be published form.
Final chapters putting those free standing chapters in context with each other and your work as a whole, summarizing key findings, etc.


So basically, the short answer is to put it in as a chapter in its current form. I've never seen any journal object to a paper having previously appeared in a dissertation, and keep in mind it may very well change - there will be editorial comments from your committee, reviewer comments, etc. It's essentially just a pre-print.