Giuliani reportedly said the remarks weren't racist because Obama's mother is white.
The papal visit will also include a trip to Washington, D.C. and to Philadelphia.
Racism was also to blame, the mayor said Monday at the Apollo Theater.
The class with Bill Yosses kicked off Citymeals-on-Wheels' September fundraising campaign.
President Obama gave the Harlem filmmaker the prestigious award at a White House ceremony this week.
A woman mailed an envelope of sugar to the police commissioner so he could analyze it, sources said.
The mayor-elect and 15 other mayors headed to Washington, D.C. on Friday to discuss economic issues.
In a statement, President Obama praised Bill de Blasio's message of "progressive change."
Elizabeth Gaynes won a White House award for her 29 years as head of the nonprofit Osborne Association.
Former President Bill Clinton dismissed talk that his wife would make a good mayor.
President Barack Obama will be back in New York Wednesday for a star-studded basketball event.
A fourth grader from the UES is heading to a White House dinner hosted by Michelle Obama.
The president will speak at Barnard College on Monday afternoon, then attend a fundraiser in Chelsea.
Mayor Michael Bloomberg said he would consider serving either party in the White House.
Carl Ballenas' students at Immaculate Conception in Jamaica Estates are competing for a $10K prize.
Get our daily New York City news and alerts!
Thank you for signing up!
Would you like to sign up for additional newsletters?
Thank you for signing up for additional newsletters.