The U.S. dollar edged up on Tuesday to within striking distance of its one-year high as investors closely watch U.S. President-elect Donald Trump's search for a Treasury secretary, which is widening after stalling over the weekend.

Trump was originally believed to have two frontrunners in Howard Lutnick and Scott Bessent, but is now reported to be considering more options.

President-elect Donald Trump is casting a wider net for Treasury secretary after jockeying among his top two candidates sent him looking for an alternative solution, according to multiple people familiar with the process.