In the Democratic primary, the AFL-CIO endorsed incumbent Marc Elrich as well as challengers Beth Daly and Vivian Malloy for the at-large seats. Only Elrich won the nomination. The AFL-CIO did not endorse incumbents Nancy Floreen, George Leventhal, or Hans Riemer. They have now decided not to endorse any of these three (or anyone else) for the general election.
The AFL-CIO have also made no endorsement in District 1 (Roger Berliner), District 2 (Craig Rice), or District 3 (Sidney Katz). They had endorsed unsuccessful candidates Duchy Trachtenberg (District 1) and Ryan Spiegel (District 3).
District 4 Incumbent Democrat Nancy Navarro is their only new endorsed candidate. They had already endorsed Tom Hucker in District 5–their only other Montgomery County Council winner besides Marc Elrich.
So two-thirds of the new Council will have the election without the endorsement of the AFL-CIO in either the primary or the general election–7 out of 9 if you include the primary.