The 30yr note went to 3.99% today.
It's only been below that 11 days in the last 50 years.
In view of this you normally wouldn't think it could be down here too long.
3.92% is the lowest I could find.
But who knows now with this crap goin' on.
With everyone using the long bond as a last resort money market fund it may be a while.
If the USGov reissues or devalues the currency, or decides to default on the bonds, who knows where it'll go.