The signs are already there and will get worse if air traffic is severely curtailed... especially over the holidays.
Short term the Republicans can "claim" that they have voted to keep the government open but long term the party in power always suffers when the economy stalls out.
AI is already putting pressure on employment and private enterprise will take the blame.
Running for mommy-government's skirt will become very tempting (as it has in NYC).
The Dems have always dreamed of a return the glorious days of FDR's one-party rule by enlightened elites.
If we have another crash this may be their golden ticket.