Joe Biden blasted the "chaos" at the Capitol, which began after President Trump urged supporters to protest confirmation of the Democrat's victory by Congress.
"For two months now, a political party and its accompanying media ecosystem has too often been unwilling to tell their followers the truth," wrote Obama.
Several GOP lawmakers who have stoked President Donald Trump's unsubstantiated claims of election fraud spoke out on Wednesday as rioters stormed the Capitol.
Pence's statement breaking with Trump came before the vice president was due to preside over a joint session of Congress to declare Joe Biden the victor.
The FBI said it had dispatched with two suspicious devices that were uncovered in Washington after reports of improvised explosives on the U.S. Capitol.
Debates over the Electoral College results were halted and the U.S. Capitol was locked down as massive crowds of Trump supporters stormed the building.