The recent US bond sales show that foreign buying interests have dwindled.

 The US government had sold 3 and 10 years bonds after its recent 7-year bond sale.

http://sg-stock.blogspot.com/2021/02/the-us-7-year-treasury-bond-sale-was.html

3-year bond sale result:

TREASURY $58B 3-YEAR NOTE AUCTION RESULTS: 

DRAWS 0.355%

BID-TO-COVER: 2.689 Vs 2.391 PRIOR

Overseas Buyer: 47.8% Vs 52.7% PRIOR

10-year bond sale result:

TREASURY $38B 10-YEAR NOTE AUCTION RESULTS: 

DRAWS 1.523%

BID-TO-COVER: 2.38 Vs 2.42 PRIOR

Overseas Buyer: 57% Vs 60.9% PRIOR

All the recent bond sales showed that foreign buying interests in the US had declined.  When there are fewer foreign buyers in the US Treasury market, the US will have difficulties in using its monetary policies to affect the world.