By Nikita Stewart, William Neuman, and J. David Goodman Mayor Bill de Blasio embarked this month on one of the more challenging and unenviable tasks of his tenure: selling the virtues of a plan to open dozens of new homeless shelters across the city. But in doing so, the mayor has chosen to embrace a level of self-scrutiny unusual for a politician running for re-election. “We had crisis after crisis, and then it dawned onRead More →