The dollar was slightly weaker against a basket of currencies on Monday as investors worried that a speech by US President Donald Trump on Tuesday would not provide many details on his economic agenda. Treasury Secretary Steven Mnuchin said on Sunday that Trump would use the event to preview some elements of his sweeping plans to cut taxes for the middle class, simplify the tax system and make US companies more globally competitive, with lower rates and changes to encourage US manufacturing.
Mnuchin said last week that he wanted to pass "significant" tax legislation by August, which is later than many investors had hoped. Mnuchin's comments "seemed to indicate the details of tax reform will be known probably closer to the latter half of the summer, and we can most likely expect 3 percent growth towards the latter end of 2018," said Bipan Rai, senior macro strategist at CIBC Capital Markets in Toronto.
The greenback was last down 0.19 percent against a basket of six major currencies at 100.90. It climbed as high as 103.82 on January 3 as investors bet that Trump would enact policies that accelerate growth and boost inflation. The dollar dropped 0.40 percent against the euro to $1.0603 and was little changed against the yen at 112.23 yen. The euro also benefited from polls showing that far-right anti-EU leader Marine Le Pen was losing traction in France's presidential race. Sterling slipped to a 12-day low of $1.2382 on a report that Scotland was preparing to call another independence referendum when formal Brexit negotiations are triggered in March.