During the phone conversation with US leader Joe Biden on April 13, Russian president Vladimir Putin complained about the episode where his American counterpart called him "a killer". Bob Woodward and Robert Costa, the reporters of The Washington Post mentioned this particular case in their book called Peril.
"I'm upset you called me a killer", Putin said as quoted in the book, ABC News wrote.
Biden reportedly replied that his quote "was not something premeditated".
"I was asked a question. I gave an answer. It was an interview on a totally different topic", the US President said before inviting Putin to meet in person.
On March 16, the American intelligence released a report on Russia's interference in the US presidential election in 2020. According to the intelligence data, Russia and Iran were the ones who tried to affect the outcome of the voting. Later, Biden called Putin "a killer" and promised that Russia was going to pay for interference in the US presidential race.