Stone, a political provocateur, was found guilty of all seven counts brought by the Justice Department, a victory for special counsel Robert Mueller’s investigation. Stone was found guilty on five counts of lying to Congress, one of witness tampering, and one of obstructing a Congressional committee proceeding.

The verdict marks a stunning conclusion to one of the highest profile prosecutions to emerge from special counsel Robert Mueller’s Russia investigation — a case that began with one of Trump’s most vocal supporters arrested during a pre-dawn raid as the special counsel’s investigation wound down, and that since then has gradually revealed new information about the Trump campaign’s positive reception to foreign interference in the 2016 election.

According to prosecutors, Stone failed to turn over documents to Congress in 2017, showing he had sought to reach WikiLeaks the previous year, and lied about five facts, obscuring his attempt to use intermediaries to get information that could help then-candidate Trump in the election against Hillary Clinton.