Donald Trump would not appear at the Senate impeachment hearing unless his lawyers would allow him. But POTUS teased that he would love to be at the Senate chamber so he can stare to what he called "corrupt faces" of his critics.

Trump held a press conference before he left the World Economic Forum in Davos, Switzerland, where he was asked about the impeachment trial. When asked if he has a plan to appear at the trial, Trump said he would love to, but his legal team may not allow him.

"I would love to go. Wouldn't that be great? I'd sit right in the front row and stare in their corrupt faces. I'd love to do it," he said.

However, Trump suggested that his legal team may have a problem with his potential appearance. When Kyra Phillips of ABC News asked why he would not, Trump told her to stop talking because she might convince him to do it against his lawyers' advice which sent the audience into laughter.

The president added that he would like his former national security adviser John Bolton to testify at the Senate impeachment hearing. However, he cited national security concerns if Bolton testifies. He also revealed that his top security adviser didn't leave his administration in good terms.

Trump also mentioned that he would like Secretary of State Mike Pompeo, acting chief of staff Mick Mulvaney, and former Energy Secretary Rick Perry to testify. But then again, he said it would pose a "national security issue" if they do.

Meanwhile, Trump also took aim at both House Judiciary Committee Chairman Jerry Nadler, who is one of Democrats' seven impeachment managers, and the indicted associate of Rudy Giuliani, Lev Parnas. The president called Nadler a "sleazebag" and Parnas a "conman."

While there was name-calling for Nadler and Parnas, Trump continued to defend his lawyer, Rudy Giuliani. POTUS said the only reason why the former New York City mayor is not a member of his legal team is that Giuliani could become a witness at the trial.

Meanwhile, Trump also threw shade on Greta Thunberg on his first day at Davos. The environmental activist's double appearances the same day as the president's speech at the conference were the most talked-about speech on that day.

In an interview with the Wall Street Journal, Trump downplayed Greta's impact on the campaign about climate change. POTUS said he doesn't know the teen activist before adding that "she's very angry."