In a radio interview in which he lamented the GOP filibusters and a gridlock in Congress, Democratic Senate Majority Leader Harry Reid said he hopes Republicans who oppose the president do so “based on substance and not the fact that he’s an African-American.” The comment came Friday during the Nevada lawmaker’s appearance on Las Vegas-based National Public Radio affiliate KNPR (http://bit.ly/16AheWv), and drew swift response from Sen. Tim Scott, R-South Carolina, who is black. “I hope Sen. Reid will realize the offensive nature of his remarks and apologize to those who disagree with the president’s policies because of one thing...