The purpose of the policy is to deter those who have little to no connection to the United States and use a short-cut to acquire US citizenship. This also means that the children born abroad will have to meet the residency requirement on US soils in order for them to be eligible to apply for Citizenship.
The policy will take into effect on October 29, 2019.
Such benefits include, Medicaid, food stamps, housing assistance, etc. Active duty military members and asylum seekers are not affected by this change.