Afaik US can always pay its debt. It is counterintuitive but: USG (or its agents) are the sole creators of USD. Fed can always create usd to exchange for bonds

Afaik US can always pay its debt. It is counterintuitive but: USG (or its agents) are the sole creators of USD. Fed can always create usd to exchange for bonds as they mature. Other bad things may happen - but not exchanging a bond due for usd in reserve account is not one of them. Unless USG decides willfully to default on a particular bond.