I am a healthcare worker so I applied under humanitarian/emergency reasons.
On September 13th I contacted my local congressperson using an online form. On September 14th I used Emma to put in an expedite request because I figured I might as well get the ball rolling somehow. Around September 20th I heard back from my congressperson's office and was told they couldn't really do anything (but then I got another email around one week later from the congressperson's office asking me to fill out a USCIS privacy form, so I kind of got mixed messages). Then on October 13th I contacted one of my state's senators and the next day I got an email from them asking me to fill out a USCIS privacy statement. I sent the senator's office the privacy statement and proof of my licensure just in case it was relevant.
This morning I was notified that my expedite request was approved. One hour later my status changed to "new card is being produced". USCIS never contacted me for additional info.
It's slightly convoluted but I'm fairly certain it was the inquiry from my Senator's office that pushed my case forward to be reviewed rather than my congressperson's inquiry (which may or may not have even been sent).