Investing.com - The dollar index gave up earlier modest gains, falling back below 97 as the euro hit fresh eight-month highs.
The dollar index was off 0.14% at 96.86 at 08:15 ET after a high for the day of 97.34.
The dollar remains under pressure on doubts about Trump administration's ability to deliver on its economic agenda.
Chancellor Angela Merkel Monday blamed Germany's trade surplus on loose ECB policy weakening the euro.
That sparked speculation German officials will step up pressure on the ECB to tighten policy this year.
The euro hit an intraday high of $1.1246, its highest level since the end of September as the euro-zone recovery.
The euro was up 0.28% at $1.1239.