On their removal. The citizen child is being deported, which is unconstitutional. This allows time to make arrangements for the US Citizen baby, to stay here with another family member, or with his or her father...
Telling the illegal who was following all requirements needed while waiting for their immigration hearing, when coming for their next check in appointment, was told to bring her children or child with her to her appointment...when she got there ICE snatched her up, with her citizen kid, shipped her to another state and deported her and her child within a day or two, without her ever being able to reach a lawyer, or given more than 1 minute to talk to family, before ice hung up the call.
...inform yourself, pretty please.