Interest expenses are not ok. Kevin Drum

Kevin Drum thinks we  can easily  take on another 100 billion in interest  expense.

Not close.  We would need to drop the ten year by another half point to support another big interest charge increase.   There is no money, and Kevin forgets we could not do this last time without QE support.  

Does Kevin see that volatility toward the end of the series?    Congress has no way to even predict the budget without a guarantee of QE.