A majority of Americans credit President Barack Obama for trying to improve race relations, but a quarter of Americans say he has made them worse, according to a new study released Monday by the Pew Research Center.

The report found a large divide between blacks and whites regarding Obama’s efforts to improve race relations, as 51 percent of blacks said Obama made progress compared to 28 percent of whites. Further, 34 percent of blacks said Obama tried, but failed, to make progress and 5 percent said he made race relations worse.

For white respondents, 32 percent said Obama has made race relations worse whereas 24 percent said Obama has tried, but failed, to make progress. The report found 63 percent of white Republicans said Obama has worsened race relations.