Mitt Romney Just Proposed a Permanent Basic Income Guarantee for Families of at Least 50 a Month and Up to 5,000 a Year https://basicincometoday.com/mitt-romney-just-proposed-a-permanent-basic-income-guarantee-for-families-of-at-least-250-a-month-and-up-to-15000-a-year/

This is of course more 'be fruitful and multiply' garbage, and coming from a Republican has to be balanced by cutting existing child welfare. However it might provide some data to be used in a UBI plan that isn't tied to number of children.