UPDATED Wed. May 7, 6:27 p.m.: AFSCME spokesman Gregory King told The Hill he has learned that AFSCME's Indiana affiliate disseminated the leaflet.

Change to Win, a coalition of seven unions, accused the American Federation of State, County and Municipal Employees (AFSCME) today of deceiving its Indiana workers with a pro-Hillary ClintonHillary Rodham ClintonDems seeing big increase in midterm House candidates When it comes to Israel, Trump’s first 100 days were one big fail Democratic leaders hurt their own party by ousting pro-life voters MORE leaflet, while AFSCME spokesmen say the leaflet is news to them.

The two groups are on opposite sides of the Democratic nomination fight, as AFSCME endorsed Clinton in October while Change to Win endorsed Barack Obama Feb. 21. Change to Win's affiliates include the Service Employees International Union (SEIU), which has organized door-to-door campaigning and phone banking for Obama in Indiana, and has aired a pro-Obama ad on Indiana television.

Change to Win claims AFSCME disseminated a pro-Clinton leaflet, bearing the message "brought to you by your union" and not containing any AFSCME identification, to Change to Win union members in Indiana.

"It's a shame that the discourse of the Democratic presidential primary campaign has sunk to the point of lying to our union brothers and sisters on the eve of the Indiana primary election," Change to Win Executive Director Greg Tarpinian said today in a statement.

"These deplorable and dishonest tactics undermine our democratic process and the hard work of thousands of Change to Win and other union members and volunteers working tirelessly to help make Sen. Barack ObamaBarack ObamaClimate March draws huge crowd to DC Trump floods the zone for 100-day anniversary Trump team did background check on Flynn, knew of Turkey ties: report MORE the 2008 Democratic presidential nominee. We expect these types of deplorable tactics from the McCain campaign, not AFSCME."

AFSCME denies Change to Win's claim, and its spokesman say they haven't seen or heard of such a leaflet. AFSCME has only disseminated leaflets to its own members in Indiana, they say, and AFSCME always identifies itself on leaflets for its members.

"We haven