Former US national security adviser John Bolton has accused President Donald Trump of seeking Chinese President Xi Jinping's help to win the re-election.
In his book, Bolton said Trump "stressed the importance of farmers and increased Chinese purchases of soybeans and wheat in the electoral outcome".
He also said that the president was willing to halt criminal investigations to give "personal favours to dictators he liked".
Excerpts from Bolton's book The Room Where It Happened has been published in various news outlets ahead of its release later this month.
Meanwhile, Trump hit back by calling him a "liar" and saying that "everybody in the White House hated John Bolton."
US carries out 'defensive' strikes on Iran's Qeshm Island, officials say
Kenya discharges five Ebola patients, no new cases reported
Bomb threats reported on two passenger planes to Warsaw, both land
Lahore, Delhi choke as air pollution spikes in parts of South Asia
Russian bombing kills 31 in village in southeastern Ukraine, local official says
