Transcript for Air traffic controllers union: Workers are at a 'breaking point'

country before. As the political battles play out, the real pain for families across the country. Many of the families sending the messages to "World news tonight." Some rationing medicine and pleading with banks for their mortgage. Steve osunsami continues his reporting. This isn't politics. This is people's lives. Reporter: The air traffic controllers union tell us tonight that their members are at a breaking point. That the stress of the job and no paycheck are just too much, and that, "Mistakes are being made." My worry now is how to keep it. Reporter: Dan Mccabe helps keep the skies safe in Atlanta. When we first met his family, they were trying get the mortgage company to let a payment slide. Tonight he's beyond frustrated. As far as where we stand today, I just don't have words for it, I'm disgusted. Reporter: The struggle of these everyday Americans grows larger, and the voices grow louder every minute this shutdown drags on. I received my last paycheck December 31st. Tomorrow I will miss my second paycheck. I haven't been paid in over 33 days. Reporter: Tonia, in Colorado Springs, tells us she could lose her home. Just thinking that this house that we've been making payments on for, 15, 16 years, we could lose it. We could lose everything. Fish and wildlife in Wisconsin, is rationing insulin. When the shutdown occurred I only had a few vials of insulin left in my refrigerator. I thought, okay, I can't really afford the $300 co-pay for more so I'll just make this insulin last as long as I can make it last. Reporter: Tim in suburban Detroit can't afford to finish his home repairs. At what point do I resign from this agency? I can't continue to afford to fund my family on my savings and continue to pay for myself to go to work. I love the work that I do and I need to have an income to do it. Reporter: In very personal messages to ABC news, they don't ask for sympathy, they ask for Washington to solve this. The administration officials under mine that the government families will get paid when the government reopens. But they say none of that will undo the damage. David. We will stay on this. Steve, thank you. We will move on to a deadly

This transcript has been automatically generated and may not be 100% accurate.