"A More Perfect Union"[1][2] is the title of a speech delivered by then-Senator Barack Obama on March 18, 2008, in the course of the contest for the 2008 Democratic Party presidential nomination.[2] Speaking before an audience at the National Constitution Center in Philadelphia, Pennsylvania, Obama was responding to a spike in the attention paid to controversial remarks made by Jeremiah Wright, his former pastor and, until shortly before the speech, a participant in his campaign. Obama framed his response in terms of the broader issue of race in the United States. The speech's title was taken from the Preamble to the United States Constitution.
Obama addressed the subjects of racial tensions, white privilege, and racial inequality in the United States, discussing black "anger," white "resentment," and other issues as he sought to explain and contextualize Wright's controversial comments.[3] His speech closed with a plea to move beyond America's "racial stalemate" and address shared social problems.
On March 27, 2008, the Pew Research Center called the speech "arguably the biggest political event of the campaign so far," noting that 85 percent of Americans said they had heard at least a little about the speech and that 54 percent said they heard a lot about it.[4] The New Yorker opined that the speech helped elect Obama as the president of the United States.[5]
Yorker was invoked but never defined (see the help page).