Backed by the largest Spanish-language broadcast network in the U.S., a massive campaign by Latino media and grass-roots groups to spur millions of eligible Hispanic residents to become U.S. citizens is showing results that could influence the agenda and outcome of the 2008 election, the Wall Street Journal reports.

More than eight million green-card holders — that is, legal permanent residents — are eligible to become U.S. citizens, and the majority are immigrants of Latin American origin, according to U.S. government data. Now, Univision Communications Inc. is using its considerable clout with the Spanish-speaking community in the U.S. to turn this latent voting bloc into an active and potentially potent force.

The citizenship drive, which is about to go national, could help turn Latinos into a key electoral constituency in several states. A larger bloc of new Latino voters would likely influence the immigration debate that has been dividing the country. In part because of this, Hispanic voters in recent elections have tended to cast ballots mostly for Democrats. For instance, in the 2006 congressional contest, Republican candidates who take a harder line on illegal immigrants than their rivals garnered only 31% of the Latino vote.

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