Vice President J.D. Vance's decision to jump into the fray and attack Ukraine President Volodymyr Zelensky during an Oval Office appearance on Friday was called out on MSNBC by a former White House official who claimed that was not his forum for speaking.

The vice president served as the attack dog during Friday’s meeting between the US and Ukrainian presidents. But he was operating with the full permission and backup of his boss.

A meeting between U.S. President Donald Trump and Ukrainian President Volodymyr Zelenskyy devolved into shouting at the White House on Friday, a remarkable scene unlike any other seen in the Oval Office in recent memory.