PHILADELPHIA (AP) -- Mitt Romney is facing tough questions about how his education proposals would affect black communities.
The Republican presidential candidate visited a West Philadelphia charter school on Thursday, a day after declaring education is the "civil rights issue of our era."
Romney repeated that declaration during the school visit, but struggled to defend his view that class sizes aren't a major factor in educational success. Local African-American leaders also said his push for more two-parent families isn't realistic in their community.
The charter school's founder also said he's not sure whether Romney understands the needs of the African-American community.
A recent poll found that 90 percent of blacks would vote for President Barack Obama, the first black U.S. president.