US President Donald Trump is looking to his wife, First Lady Melania Trump, for tips on how to improve his poll numbers, a media report said.

Trump, addressing a women's empowerment panel on Wednesday, said Melania is "doing a great job", Politico news said in the report.

I shouldn't say this, but her poll numbers have gone through the roof last week," Trump said. 

"What was that all about? Through the roof. She has to give us the secret."

While the President's approval rating has fallen into the 30s, Melania's has soared. 

Fifty-two per cent of Americans said they have a favourable view of her, while 32 per cent view her unfavourably, according to a CNN/ORC poll. 

Three per cent have never heard of her, while 12 per cent have no opinion.