A police officer keeps watch in front of the U.S. Federal Reserve building in Washington, DC, U.S. on October 12, 2016. REUTERS/Kevin Lamarque/File Photo

NASHVILLE (Reuters) - U.S. President Donald Trump is close to making a decision on who to nominate as vice chair of the Federal Reserve, an administration official said on Monday.

The position became vacant in October after veteran central banker Stanley Fischer stepped down for personal reasons.