Throughout his political career, Biden has cultivated a reputation for improvisational candor, a trait allies praise as humanizing but opponents deride as unruly.
“I am impressed that if he is horrified and moved by what he is witnessing, as we all are, he does not say it in pleasant language,” said Harold Koh, who served as legal counsel at the State Department during the Obama administration. “He says what he thinks it is. I would rather more politicians were more outspoken than smarter with their words.
But amid the biggest ground war in Europe since World War II, Biden’s tendency to deviate from official US policy has the potential to complicate efforts to end the conflict and confuse allies and partners, according to some diplomats.