How much did Mitch McConnell know about Russian interference and when did he know it?

Now seems like a good time to revisit how Republican leadership in Congress knew about Russian interference in the 2016 presidential election in the summer and fall of that year. Specifically, the part about how intelligence officials briefed leadership about their knowledge of Russia’s efforts to help Donald Trump, and how Senate Leader Mitch McConnell actively suppressed that information before the election.

“The Dems were, ‘Hey, we have to tell the public,'” recalled one participant. But Republicans resisted, arguing that to warn the public that the election was under attack would further Russia’s aim of sapping confidence in the system.

Senate Majority Leader Mitch McConnell (R-Ky.) went further, officials said, voicing skepticism that the underlying intelligence truly supported the White House’s claims. Through a spokeswoman, McConnell declined to comment, citing the secrecy of that meeting. […]

A week later, McConnell and other congressional leaders issued a cautious statement that encouraged state election officials to ensure their networks were “secure from attack.” The release made no mention of Russia and emphasized that the lawmakers “would oppose any effort by the federal government” to encroach on the states’ authorities.

In light of these indictments, based in part on evidence that the intelligence community had before the election and presented to Republican leadership, there are a lot more questions now.

Like what did Mitch McConnell know and when did he know it?