That question has placed Trump and his government in the middle of a scandal. (Scandal, in this case, means a big problem that may involve wrong-doing.)
When one of Donald Trump’s advisors (National Security Advisor Michael Flynn) was asked if he had talked to the Russian government before the U.S. election, he said no. But that was a lie. He had to resign (quit his job) because of his lie.
In talking to the Russian government, Flynn may have told them some things he shouldn’t have told them.