Trump speaks w/ Putin: 7/31/19
Trump requests list of top US spies: 8/3/19
Russia publishes name & biography of a man living near DC: 9/10/19
Trump says we should not use foreign spies: 9/10/19
Whistleblower complaint is filed re: alarming “promise” to foreign leader: 9/12/19
So — looks as though, between 8/3/19 and 9/10/19, Trump gave to Russia a list of US spies in Russia.