President Donald Trump speaks during a bilateral meeting with Germany's Chancellor Angela Merkel at the sidelines of the NATO summit in Watford, Britain, December 4, 2019. Kevin Lemarque | Reuters

LONDON — President Donald Trump angrily hit out at Democrats on Tuesday, sharply criticizing the impeachment inquiry and calls for U.S. lawmakers to consider a vote to censure him. Sitting alongside NATO Secretary General Jens Stoltenberg in London, Trump described the now infamous call with Ukraine President Volodymyr Zelenskiy as "flawless" and repeatedly claimed he had done "nothing wrong." Trump has joined other world leaders in the U.K.'s capital city to mark the 70th anniversary of NATO. Shortly after Trump's bilateral meeting with Stoltenberg, one reporter asked the president whether he had heard about speculation that U.S. lawmakers could consider pursuing censure over impeachment, which could lead to removal from office.

"Unacceptable," Trump replied. "I wouldn't be happy with that at all, no. To me, it is unacceptable. I did nothing wrong. You don't censure somebody when they did nothing wrong. They are in search of a crime," Trump said, appearing to refer to House Democrats.

What is censure?

Less severe than expulsion, the U.S. Senate describes censure as "a formal statement of disapproval." Several op-eds in recent weeks have called on U.S. lawmakers to consider pursuing censure over impeachment, with many arguing that a bipartisan rebuke of the U.S. president would be a better option. Censure is not currently being pursued by U.S. lawmakers. Instead, a Democratic-led inquiry is trying to determine whether Trump improperly pressured Ukraine to force that country to investigate former Vice President Joe Biden, a Democratic presidential hopeful. The alleged pressure campaign came while Trump was withholding congressionally appropriated military aid to Ukraine as it battles Russia. "Not only wasn't there a crime, it is not even a word that should be used," Trump continued.