Czechoslovakia's Státní bezpečnost (StB) intelligence service spied on US President Donald Trump in the 1980s, to gain intel on the US government, The Guardian has reported. The StB began spying on Trump following his marriage to Czechoslovak model Ivana Zelníčková. Ivana's father Miloš Zelníček provided regular information about his daughter's visits from the US and about Trump's career to StB.