As far as I know and observed applications to TA positions are fairly democratic. I know of a recent instance where the professor had to accept the only TA appl

As far as I know and observed applications to TA positions are fairly democratic. I know of a recent instance where the professor had to accept the only TA application he received because no one else applied. If you still have a problem there are many readdress systems in colleges to challenge such situations. It would be more constructive to provide proof to your claim.