Former Secretary of State John KerryJohn Forbes KerryKrystal Ball: New Biden ad is everything that's wrong with Democrats The Hill's Campaign Report: Democrats worry about diversity on next debate stage Krystal Ball: Biden's new ad is everything that's wrong with Democrats MORE had a simple message for President TrumpDonald John TrumpTrump says he will 'temporarily hold off' on declaring Mexican drug cartels as terror organization House Judiciary Committee formally receives impeachment report Artist behind gold toilet offered to Trump sells banana duct-taped to a wall for 0,000 MORE on Tuesday, saying he should “resign.”

Kerry was speaking on a discussion panel at the World Economic Forum in Davos, Switzerland, when he was asked what his message to Trump would be, according to CNBC.

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Kerry was at first hesitant to answer the question, saying Trump "doesn't take any of this seriously.”

“He doesn’t have an ability to have that kind of conversation,” Kerry said after debating whether to answer or not.

He ultimately responded directly to the question, which prompted laughter and clapping from the audience.

Trump was also supposed to be in Davos this week for the forum, but canceled the trip due to the ongoing partial government shutdown that is now in its second month.

The president once again lashed out at the media over the event in a Tuesday morning tweet. 

"Last time I went to Davos, the Fake News said I should not go there," he wrote. "This year, because of the Shutdown, I decided not to go, and the Fake News said I should be there. The fact is that the people understand the media better than the media understands them!"