Democratic operatives are secretly digging into the past of White House wannabe Ted Cruz, determining that a hushed-up 1987 booze bust is just the tip of a liquor-filled iceberg!

Breaking Celebrity News uncovered official documents showing the 45-year-old politician admitted to a drinking bust in an application dated Feb. 6, 2003, for his appointment as the Texas Solicitor General.

And he confessed to being in t