Thanks a lot! I will go to all the ASC I can possibly go to starting on Monday. The congressman wasn't really helpful with scheduling an interview, he said he can't do anything about it. I will call him again on Monday and try to convince him again. Meanwhile, is there any other way I can get an interview faster?Don't just seat back waiting for a USCIS call back to reschedule. Start visiting every ASC far and near to see if you can get the bio done ASAP (like @Blade_ already posted above). Time is not on your side. You need to get cracking if you really want to give yourself a shot at getting this GC. Take a look at the Timeline spreadsheet to see the different locations where others have successfully done bio walk-ins, then put a plan of action in place on how to go from one to the other until you find one where you can successfully do a walk-in.
Once you complete the bio (in the next couple of days hopefully), get back to your congressman/woman for further assistance in getting scheduled for an interview before the FY is over. You have less than 2 weeks to make this happen!