On Wednesday night, Julian Castro was one of the break-out stars of the Democratic debate.
Political insiders said Castro was one of the debates winners
His visibility and poll numbers have increased.
Searches for Julian Castro have gone up since his debate performance.
Who is Julian Castro?
Castro is a 44-year old, Hispanic from San Antonio, Texas.
He was the Secretary of Housing and Urban Development from 2014 to 2017.
He was the Mayor of San Antonio from 2009 to 2014.