U.S. President Donald Trump is increasingly unlikely to nominate Federal Reserve Chair Janet Yellen for a second term next year, and National Economic Council Director Gary Cohn is the leading candidate to succeed her, Politico reported on Tuesday, citing four people close to the process.

Politico said sources in the White House, the Treasury Department and on Capitol Hill said that if Cohn decides he wants the job, he is likely to get it.

"It's Gary's if he wants it, and I think he wants it," Politico quoted one Republican close to the selection process as saying.