The family of US Senator Tammy Duckworth has expanded again, as she becomes the first sitting Senator to give birth while in office. Duckworth and her husband Bryan Bowlsbey welcomed Maile Pearl Bowlsbey into the world today. Duckworth had her first child while serving as a US Congresswoman. In all 10 women have given birth while serving in Congress but none, until now, did so while a Senator.