IAM Steps Into Maryland Politics — And Sends a Message
By Barry O’Connell — Maryland Wire
The International Association of Machinists and Aerospace Workers (IAM), one of the most powerful industrial unions in the United States, has formally endorsed Governor Wes Moore and Lieutenant Governor Aruna Miller. On paper, it’s a routine labor endorsement. In practice, insiders across Annapolis and the labor world are reading it as something far more pointed — a strategic signal, a coalition marker, and, according to several Democratic operatives, a shot across the bow of Comptroller Brooke Lierman.
Who the IAM Actually Is
The IAM is not a boutique union, not a niche craft guild, and certainly not the long‑defunct milliners’ association some confuse it with. It is a 600,000+ member industrial powerhouse, representing workers in:
- Aerospace
- Defense contracting
- Airlines
- Rail
- Federal facilities
- High‑skill manufacturing
- Transportation and logistics
Maryland is one of IAM’s strongest states because of its dense concentration of:
- Northrop Grumman
- Lockheed Martin
- Fort Meade
- Aberdeen Proving Ground
- Federal contracting hubs
- Transportation infrastructure
IAM is a serious union for serious jobs — the kind of union that cares about procurement stability, federal workforce protection, and long‑term industrial investment. When IAM speaks, the defense sector listens.
Why IAM Matters in Maryland
IAM’s footprint touches every part of Maryland’s economic backbone:
- Defense and aerospace in Anne Arundel, Prince George’s, and Baltimore
- Transportation and rail in Baltimore City and Montgomery County
- Federal contracting across the I‑95 corridor
- Skilled manufacturing in central and western Maryland
IAM’s endorsement is not symbolic. It is structural — a signal to tens of thousands of high‑wage workers that the Moore–Miller administration is aligned with their economic interests.
In Maryland politics, IAM is one of the “grown‑up unions.”
They don’t chase headlines.
They don’t endorse lightly.
They don’t play identity politics.
They endorse based on jobs, contracts, and stability.
Why IAM Endorsed Moore
According to labor strategists, IAM’s endorsement of Governor Moore reflects:
- His administration’s support for federal contracting stability
- His transportation and infrastructure agenda
- His alignment with union‑friendly procurement rules
- His reputation for competence and predictability
- His national stature within labor‑aligned Democratic circles
IAM is not a culture‑war union.
IAM is a jobs union.
Moore is a jobs governor.
The fit is natural.
Why IAM Endorsed Aruna Miller — And Why That Matters
Here’s where the endorsement becomes politically interesting.
IAM did not simply endorse Moore.
IAM explicitly endorsed Lieutenant Governor Aruna Miller.
Lieutenant governors do not automatically receive union endorsements.
Many unions endorse the governor and stay silent on the LG.
IAM did the opposite:
They endorsed both, and they did so clearly.
Political observers interpret this as:
- A sign that IAM views Miller as a credible future executive
- A signal that Miller is trusted on transportation and infrastructure
- A message that IAM sees Miller as aligned with industrial labor priorities
- A subtle but unmistakable elevation of Miller’s standing inside the Democratic coalition
IAM does not waste endorsements.
If they endorse an LG, it’s because they see her as real.
Why People See This as a Shot Across the Bow at Comptroller Brooke Lierman
This is the part insiders are whispering about.
IAM could have:
- Endorsed Moore alone
- Stayed vague about the rest of the statewide ticket
- Issued a generic “supporting the administration” statement
They did none of those things.
Instead, they:
- Endorsed Moore
- Endorsed Miller
- Did not endorse Lierman
- Did not hedge
- Did not leave the door open
- Did not issue a “pending further review” statement
In Annapolis, silence is rarely neutral.
Silence is a message.
Several Democratic operatives — speaking on background — interpret IAM’s move as:
> “IAM is signaling who they trust in the executive branch, and who they don’t.”
Others frame it more bluntly:
“IAM is telling the political class that Miller is the one they’re aligned with, not Brooke.”
Still others describe it as:
> “A polite but unmistakable rebuke.”
IAM is a union that values stability, predictability, and follow‑through.
They are not known for rewarding officials who create friction with labor or who appear unreliable in negotiations.
Their endorsement pattern reflects that.
What This Means for Maryland’s Political Landscape
IAM’s endorsement of Moore and Miller — and not Lierman — is being interpreted as:
- A consolidation of industrial labor behind the executive branch
- A sign that Miller is viewed as a serious future contender
- A message that IAM is not aligned with the Comptroller’s political trajectory
- A reinforcement of Moore’s broad labor coalition
- A subtle recalibration of statewide labor politics
IAM is not a union that plays games.
When they endorse, they endorse with purpose.
And this endorsement has purpose.
Maryland Wire Takeaway
IAM’s move is not just a labor endorsement.
It is a political signal, a coalition marker, and a strategic message.
It tells the political class:
- Moore has locked down the industrial labor vote.
- Miller is being treated as a legitimate future executive.
- Lierman is not the preferred partner for industrial labor.
- The Moore–Miller administration is viewed as stable and reliable.
In a state where labor endorsements shape the internal map of Democratic politics, IAM’s decision is one of the clearest signals yet of how Maryland’s institutional players are positioning themselves for the next decade.


