If Harris is the nominee, the IAFF may support the GOP...
Have they said as much? Does she have a bad record on issues of importance to firefighters???
As someone who has a [small], tangential “in” with the IAFF, I would say this is very unlikely. In 2016, endorsing Hillary was deemed untenable (cowards), but they never even entertained endorsing Trump.
I’m sure Harris will be crazy vilified, but I doubt the IAFF would so clearly endorse against their interests. Cops have an incentive to endorse the GOP because Republicans want no police accountability whatsoever. Firefighters get nothing by endorsing the GOP except an Oval Office mouthpiece for their cultural grievances.
That said, Ed Kelly as the new president of the IAFF puts the organization on a different path that will be a lot more conservative-friendly. He is a huge slimeball who laments corruption but still spends the “brothers’ and sisters’” money lavishly on his own luxuries, so in that way he’s kind of in the mold of Trump. He exploited populism, male fragility, and cultural issues to win and knows the members are mostly huge Trumpists.
That was a lot of words to say that yes, the IAFF will become less powerful in Democratic politics, but that I still don’t think they’d outright endorse the GOP.