In a move that Democrats are lambasting as a voter suppression tactic, Sen. Mitch McConnell’s campaign and its GOP allies are distributing a mailer to Kentucky voters with the title “ELECTION VIOLATION NOTICE.”

It warns of “a possible fraud” and reads, “You are at risk of acting on fraudulent information.” It says it’s paid for by the Republican Party of Kentucky and authorized by the McConnell Senate Committee ’14.

The mailer is ultimately a rather creative attack on Democrat Alison Lundergan Grimes, telling the voter that she is feeding them “fraudulent information” and “blatant lies solely to deceive Kentucky voters” about McConnell and her own candidacy.

The mailer surfaced just four days before Election Day, when the Senate GOP leader is polling narrowly ahead of Grimes in an unexpectedly close contest. It’s unclear how widely it was sent.

Kentucky Democrats torched the “despicable mailers” as potentially illegal “voter suppression.”

“After trying for 16 months to buy this election, Mitch McConnell and the out-of-state special interests that support him are now trying to steal Kentucky’s Senate seat using questionable and possibly illegal voter suppression tactics. The despicable mailers targeting Kentucky voters with misleading information are just another sign of Mitch McConnell’s desperation as Kentuckians hold him accountable for his 30-year failed record in Washington,” Kentucky Democratic Party Chair Dan Logsdon said in a statement.

Spokespersons for the Kentucky Republican Party and the McConnell campaign did not respond to several requests for comment on Friday.