Interest-rate differentials are what are helping the dollar right now. The difference between U.S. and other investment horizons has widened of late.
We are getting a consistent view from the Fed now that they are somewhat worried about the risk of a higher inflation rate. That is going to cause more rate hikes to come and higher yields will help the dollar.
Jobless claims helped (the U.S. dollar), but we're looking ahead to tomorrow and next week at this point.