With Sen. Kirsten Gillibrand entering the 2020 presidential race on Tuesday, her dramatic shift on the issue of immigration over the past decade will likely be one of the central questions about her candidacy as she seeks to take on President Donald Trump.

Gillibrand, as a congresswoman for a little more than two years from a mostly white and more conservative district in upstate New York, opposed “amnesty for illegal immigrants” and voted to increase funding for US Immigrations and Customs Enforcement (ICE) to work with local law enforcement on deportations. As the junior senator from New York, Gillibrand now espouses much more liberal positions on the issue, and last year called for the abolishment and reimagining of ICE.

A review by CNN’s KFile of Gillibrand’s old campaign websites and materials, speeches, interviews and legislative history show how central Gillibrand’s conservative positions on immigration were to her message during her brief career as a member of the House.