CNN panel 'not surprised Trump is lying' to Trudeau: 'Maybe he could fudge details in business -- not as president'
From L-R, Belgium's King Philipe, Italian Prime Minister Paolo Gentiloni, U.S. President Donald Trump who shakes hands with French President Emmanuel Macron, NATO Secretary General Jens Stoltenberg (partially hidden), Croatia's President Kolinda Grabar-Kitarovic, German Chancellor Angela Merkel, Canada's Prime Minister Justin Trudeau gather with NATO member leaders to pose for a family picture before the start of their summit in Brussels, Belgium, May 25, 2017. REUTERS/Christian Hartmann

During "The Lead with Jake Tapper," both sides of the aisle on the political panel were annoyed with President Donald Trump making things up during trade conversations with Canadian Prime Minister Justin Trudeau.

"I'm not surprised that Donald Trump is lying," former Bernie Sanders spokesperson Symone Sanders confessed. "I'm not surprised that he's bragging about lying, but I am absolutely alarmed. Look, I said a long time ago that I think the Trump administration has aided and abetted in America, abdicating our role as the adult in the room, the leader of the free world, the folks that people look to, and this does not make our allies comfortable. It does not make folks want to get in the room and talk to us, and it's in a bad position when comes to making deals that President Trump is good at."

Republican Mary Katherine Ham noted she was bothered by Trump's inability to prepare for the discussion with another world leader and learn about what things like trade deficits are.

"Do the homework, know the facts, go into the room with the prime minister rather than gaslighting Prime Minister Trudeau," she demanded. "That's the meeting behind it. But it's not a responsible way of doing business. I would appreciate it if he would get at least as much prep as we do before coming to the panel from these meetings, and the fact he brags about it is problematic."

Tapper noted that press secretary Sarah Huckabee Sanders said that there was a trade deficit with Canada and after the briefing had to tweet out that there was a deficit on "goods." However, trade is about goods and services, and when it comes to services, they offset the deficit on trade.

"That's actually not how it works," CNN's Kaitlan Collins schooled the president. "But it does speak to the president going from being a businessman to the president because maybe he did that when he was in private life, he could fudge the details, the numbers, a little when he was in meetings with people and in negotiations. But when you're the president of the United States, you cannot do that with other world leaders."

She noted that it gives a window into the White House and what negotiations with other world leaders are like with Trump.

"And as you mentioned, those tariffs, the tariffs applied upset a lot of countries," she continued. "And he said he could exempt countries from the steel and aluminum tariffs on the imports after negotiations with them. How are they supposed to feel that he could be making up some kind of statement when he's saying that. It really shows what it is like behind closed doors between the president and another leader."

Watch the clip below: