McConnell's office disputed Biden's account, as reported by Politico, "pointing to a letter signed by all four congressional leaders in September 2016 and sent to the president of the National Association of State Election Directors, urging cybersecurity precautions in light of reports of attempted hacking."
"That missive, however, did not address Russia specifically, or the larger topic of influence beyond voting systems," Politico writes.
The former vice president's account echoes reporting that first appeared in The Washington Post in Junedescribing a meeting that occurred the same month between Obama's Homeland Security Secretary Jeh Johnson, then-FBI Director James Comey, Homeland Security adviser Lisa Monaco and 12 key members of Congress.
In the meeting, the Post reports:
"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.
... 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.