8 a.m. Eliot Spitzer hosts a breakfast for attendees of the Somos El Futuro Conference, in Puerto Rico.
11 a.m. Erik Dilan presents $9 million for green buildings projects, at 203 Arlington Avenue, in Brooklyn.
11:30 a.m. The city’s Parks Department breaks ground on three synthetic fields, at Albert Montbellier Park in Queens.
5 p.m. People wishing to attend City Hall News’ breakfast with Anthony Weiner must RSVP to the event organizers.
7 p.m. Leroy Comrie honors noted filmmaker Kasi Lemmons, at 1100 Avenue of the Americas.
7 p.m. Janet Huckabee, the wife of presidential candidate Mike Huckabee, with Michele Norris of NPR’s All Things Considered.
8 p.m. Out Magazine honors influential people in gay culture, at 21 Exchange Street.
The New York City Independent Budget Office releases a report on Michael Bloomberg’s 10-year housing market plan.
Hillary Clinton makes an appearance in D.C.
Rudy Giuliani makes an appearance in Nevada.
Barack Obama campaigns in Iowa.
John Edwards campaigns in Iowa.
John McCain campaigns in New Hampshire.
And Mitt Romney campaigns in Missouri and New Hampshire.