<p>'Today we march," the banners read, "tomorrow we vote." Seventeen-year-old Paulo V., an undocumented Brazilian student who marched at an immigrant rally in Boston three months ago, was among the Latinos who saw hope in those words. "This was the determining point," says Paulo. Before the marches, "I didn't know anything about the topic. But after, I understood how much I could be a part of it."</p>