Gillibrand on defensive in first presidential push

U.S. Senator Kirsten Gillibrand appeared on Sunday morning national news programs as part of her first push to introduce herself in a crowded field of 2020 Democratic presidential candidates - and she often found herself on the defensive over previous political views.On Jake Tapper's CNN program "State of the Union,"Tapper highlighted Gillibrand's 2008 campaign website for her then U.S. House of Representatives seat as well as campaign literature that noted her opposition to granting amnesty to