Recent quotes:

Goodbye to the Bull Market for US Treasury Bonds - Bloomberg

Second, the US government’s fiscal health keeps deteriorating: Last month, the Congressional Budget Office raised its estimate of this year’s federal budget deficit to $1.7 trillion from $1.5 trillion, and no improvement is likely anytime soon given the political deadlock in Washington. The outlook will probably deteriorate further as higher interest rates drive up debt service costs and retiring baby boomers push up Medicare and Social Security expenditures. Larger deficits push up r*, and add to the bond term premium by increasing the risk of long-term lending to the US government.