New U.S. travel restrictions
With an Executive Order signed on January 27th, the U.S. has placed severe restrictions on entry to the U.S. of nationals from 7 countries.
Click to read an overview of the restrictions
As the Order was written, it also applied to persons with more than one nationality/passport. However, it appears that a number of countries - including Denmark - have succeeded in getting an exemption for their nationals. This implies that nationals of the 7 impacted countries with dual citizenship and a valid Danish passport will still be able to travel to the U.S. - subject to all the 'normal' conditions and restrictions.
Further, please note that some of the affected countries have indicated that they plan to implement countervailing measures, including restrictions on access of U.S. nationals.