9 a.m. The New York Young Republican Club will hold an all-day political training seminar on topics including grassroots campaigning, mail and Internet techniques, public speaking and the Leadership Institute at Kings College at the Empire State Building, 350 Fifth Avenue at 34th Street.
Sen. Hillary Clinton holds a fundraiser in Los Angeles.
Barack Obama campaigns in Las Vegas.
1:30 p.m. Helen Selsdon, a Brooklyn single mom whose daughter attends PS 29, will host a peace march from Carroll Park in Brooklyn to Grand Army Plaza to mark the fourth anniversary of our invasion of Iraq.
5:30 p.m. Senator Chuck Schumer and Oregon Senator Ron Wyden will discuss issues from Schumer’s book, Positively American: Winning Back the American Middle-Class One Family at a Time, at the Strand Bookstore, 828 Broadway at 12th Street.