(CNN)President Barack Obama sharply criticized Republican presidential nominee Donald Trump for saying earlier this week that the black community is in the worst shape it's "ever been in before."
Obama on Trump: 'Even most 8-year-olds' know slavery was a bad time for black people
"I think even most 8-year-olds will tell you that whole slavery thing wasn't very good for black people," Obama told ABC News in an interview that aired Friday on "Good Morning America." "Jim Crow wasn't very good for black people. What we have to do is use our history to propel us to make even more progress in the future."
Obama's comments reflected the wide gulf between the President and Trump that came into greater focus this week as race again became a top issue in the 2016 campaign following fatal police shootings of African-American men in Oklahoma and North Carolina. Speaking before a mostly white audience Tuesday in Kenansville, North Carolina, Trump spoke of the need to "rebuild our inner cities."
"Our African-American communities are absolutely in the worst shape that they've ever been in before. Ever. Ever. Ever," Trump said.
The speech was part of a high-profile push by the Trump campaign to plug gaps in poll numbers with minority voters, and also to win over white voters turned off by divisive rhetoric from Trump that critics have repeatedly labeled as racist.
Still, the effort has stumbled. By proposing the expansion of the controversial "stop-and-frisk" program as a way to improve urban policing -- and by engaging in a public re-litigation of the baseless "birther" controversy that critics labeled racist -- Trump spent much of the last week doing damage control with the same voters he'd hoped to attract.
All the while, Obama has positioned himself as one of Trump's most vocal critics -- and rival Hillary Clinton's biggest cheerleader.
Speaking to reporters gathered in the Oval Office last Friday, Obama sarcastically dismissed Trump's "birther" capitulation. "I was pretty confident about where I was born, I think most people were as well," he said. "My hope would be the presidential election reflects more serious issues than that."
And the president made a more earnest effort to rebut Trump when he spoke at the Congressional Black Caucus gala on Saturday, and said that he would consider it a "personal insult" to his legacy if black voters didn't turn out for Clinton.
"If I hear anybody saying their vote does not matter, that it doesn't matter who we elect -- read up on your history. It matters. We've got to get people to vote," Obama said. "I will consider it a personal insult -- an insult to my legacy -- if this community lets down its guard and fails to activate itself in this election. You want to give me a good sendoff? Go vote."
At the event, Obama also criticized Trump for using hyperbolic language when discussing African-Americans, and suggested that Trump visit the Smithsonian's new National Museum of African American History and Culture for perspective.
"You may have heard Hillary's opponent in this election say that there's never been a worse time to be a black person. I mean, he missed that whole civics lesson about slavery or Jim Crow," he said. "But we've got a museum for him to visit, so he can tune in. We will educate him."
Obama speaks at the museum's opening Friday.