Help with Batch File Renameing - RegEx Rename Script

I am running into an issue of a simple RegEx rename not working. I highlight the files that I need to rename and then choose scripts - rename using the RegEx pattern.

1 - Docuemnt Name - Part
1 - Docuemnt Name - Part
2 - Docuemnt Name - Part
2 - Docuemnt Name - Part

I tried these source patterns to match the digit and the dash

\d\s\-\s
\d -

Destination Pattern Week 1

Files are not renamed.