Wow what a scumbag move, calling ICE on your mom?

Not seeing that in the article. The nephew is her brother’s son (not sure why it’s not explicitly stated in this article as it was in the WBUR story that broke the news), and the boy’s mother is the one who was detained by ICE. From the WBUR article:

White House Press Secretary Karoline Leavitt now has a family connection to the ICE actions sweeping the country — her nephew’s mother was arrested by agents in Revere earlier this month.

Bruna Ferreira, a Boston-area resident who migrated with her family to the U.S. from Brazil as a child, according to her sister and immigration authorities, is now in custody at an ICE facility in Louisiana.

Michael Leavitt, the press secretary’s brother, had a relationship with Ferreira, and the two have a son.

A Trump administration official confirmed the connection between Ferreira, Michael Leavitt and his sister Karoline Leavitt — the 28-year-old New Hampshire native who rose from relative obscurity to occupy one of the most prominent positions in the White House. The official said the child’s parents have not spoken in years, and that the child has lived full-time in New Hampshire with Michael Leavitt since his birth.

WBUR could not immediately confirm whether the boy only lived with his father after the couple separated. The split happened about 10 years ago, according to a family member.