PBS Newshour PBS Newshour

President Trump walks out of the White House toward Marine One on the South Lawn on Monday. A new NPR/PBS NewsHour/Marist poll finds most Americans think Trump's response to Charlottesville events was "not strong enough." Mark Wilson/Getty Images hide caption

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Mark Wilson/Getty Images

Senate Majority Leader Mitch McConnell, R-K.Y. (left), and Senate Majority Whip John Cornyn, R-Texas, speak to members of the media outside the West Wing of the White House on Tuesday in Washington, D.C. Alex Wong/Getty Images hide caption

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Alex Wong/Getty Images

People interlock hands on the Arthur Ravenel Jr. Bridge in Charleston, S.C., a few days after nine black churchgoers were killed by a white shooter in June. A new PBS NewsHour/Marist poll finds attitudes about opportunities in the U.S. for blacks and whites contrast along racial lines. The poll will be discussed during PBS' America After Charleston broadcast Monday night. Brendan Smialowski/AFP/Getty Images hide caption

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Brendan Smialowski/AFP/Getty Images

Jim Lehrer, when he moderated the the first 2008 presidential debate, at the University of Mississippi. David McNew/Getty Images hide caption

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David McNew/Getty Images