A little history was made in Washington on Thursday – little in the form of a newborn who became the first baby to appear on the floor of the US Senate during a vote. A swaddled 11-day-old Maile Pearl Bowlsbey arrived on the floor of the chamber, carried by her mother, Illinois senator Tammy Duckworth. Oblivious to the momentous occasion, however, little Maile 'slept through the whole thing'.