Trump and Putin Have Met Five Times. What Was Said Is a Mystery.

• The unusually secretive way the president has handled these meetings has left his own administration guessing what happened.
• The mystery seems to have drawn the attention of the special counsel, Robert S. Mueller III, who is examining ties between the president and Russia.

A group of Republican senators broke ranks on Tuesday to side with Democrats in a showdown over sanctions on Russia.

Every Time Trump Has Talked to Putin

President Trump described his first contact with President Vladimir V. Putin after the 2016 election as “beautiful.”