Ryan spoke today at a news conference with Estonian Prime Minister Juri Ratas during a visit by a bipartisan congressional delegation to the Baltic NATO member and staunch Washington ally.
The Republican speaker said though Russia's alleged meddling didn't affect the outcome of the election its actions "cannot be tolerated."
He stressed the US has a responsibility to share the results of the Russia investigation with countries like Estonia, which in recent years has faced Russia's aggressive disinformation campaigns along with Baltic neighbours Latvia and Lithuania.