A charging document filed in Washington by U.S. Attorney John Durham on Friday kindled fresh speculation about where the criminal inquiry into the Russia investigation is headed.

Near the top of the five-page filing, which lays out a single false statement charge against former FBI lawyer Kevin Clinesmith for altering a CIA email in the course of seeking renewed permission to wiretap onetime Trump campaign adviser Carter Page, is a brief description of how the bureau began its investigation into whether there was coordination between associates of then-presidential candidate Donald Trump and Russia.