US Vice President Mike Pence has denied a New York Times report suggesting he is eyeing a 2020 run for President, calling it "disgraceful and offensive".
"The allegations in this article are categorically false and represent just the latest attempt by the media to divide this administration," Pence said in a statement on Sunday.
The New York Times story said some Republicans were moving to form a "shadow campaign" for 2020 as though President Donald Trump were not involved.
It said multiple advisers to Mr Pence "have already intimated to party donors that he would plan to run if Mr Trump did not".
But Mr Pence called the article "fake news" and said his entire team was focused on advancing Mr Trump's agenda and seeing him re-elected in 2020.
"Any suggestion otherwise is both laughable and absurd."
The Times said Pence had not only kept a full political calendar but also had created his own independent power base, including a political fund-raising group called the 'Great America Committee'.
On a trip to Eastern Europe last week, Mr Pence repeatedly made hawkish statements about Russia that differed from Mr Trump's public comments.
During his trip, Mr Pence condemned Russia's presence in the former Soviet republic of Georgia, with which Moscow fought a brief war in 2008. He also said ties with Russia would not improve until Moscow changed its stance on Ukraine and withdrew support for countries like Iran, Syria and North Korea.
Mr Trump only reluctantly signed into law a bill for new sanctions against Russia that had overwhelming support in congress. He said US relations with Moscow were at an "all-time" low and blamed lawmakers for it.
White House senior counsellor Kellyanne Conway on Sunday also slapped down speculation about Pence.
Ms Conway told ABC's This Week programme that Mr Trump "plans on being a two-term President" and that she had "zero concern" that Mr Pence was setting up a "shadow campaign" of his own.
"It is absolutely true that the Vice President is getting ready for 2020 - for re-election as Vice President," Ms Conway said.
"Vice President Pence is a very loyal, very dutiful, but also incredibly effective Vice President, and active Vice President," said Ms Conway, who added that she had worked for Mr Pence for a decade as his pollster and senior adviser.