... "Immigrant Roots Immigrant Rights".
* Charlotte, North Carolina: "dozens" per this
* Los Angeles: "thousands" per this; (UPDATE: "several thousands" per Amy Taxin of the Associated Press, link); UPDATE 2: Julia Preston and Kirk Semple of the New York Times say one of the L.A. marches had 'about 1,000 people carrying Mexican flags and wearing T-shirts saying “Legalize America now"' (link).
*...