But Saturday's remark wasn't one of those situations - he was speaking to an audience from a teleprompter. In the minutes before he called for Putin's departure from power, the crowd of roughly 1,000 people was clearly feeding off Biden's remarks, clapping, waving flags and even starting a chant.
Biden's emotional declaration gave voice to the frustration that many Western countries - and many U.S. voters - feel about the invasion of Ukraine, one ally to the Democratic president said.
It came, officials explained, after a day that included Biden meeting with Ukrainian refugees uprooted by war and government officials in Ukraine trying to respond to Russian bombing campaigns that have ravaged cities and, according to the United Nations human rights office, killed at least 1,119 civilians.