Cannot Get Labels behind Polygon

[FienyFenty]

Hello, I am hoping someone else has been able to figure this out. I have tried all suggestions by Esri like changing the weights and increasing the priority and also adjusting the drawing order, yet nothing seems to work. 

In the attached picture, I have a polygon boundary that I have symbolized with some transparency to show the features beneath my boundary. I am having issues with the street layer as it overlaps the polygon drawing even though I have set the polygon with higher priority and I have also tried other ways to fix it and it still appears above the polygon boundary causing it to stand out ...please advice, thanks everyone who replies. 🙂

[SteveCole]

I would think that you will need to convert the labels into annotation and then position the annotation layer accordingly underneath the polygon like this:

[DavidSolari]

Agreed, I can't find a way to draw labels under other layer features. If an annotation class leads to maintenance issues, you can convert labels to graphics using the same Convert Labels section of the right-click menu, that stores the labels in the map file instead of a database. It's pretty fast to wipe out the old graphics layer, convert the labels again and reposition the new layer before publishing and you don't leave behind any junk in your default GDB.