A new poll by Latino Decisions of 1,600 registered Latino voters in New Mexico, Colorado, Florida and Nevada shows those polled in three of the states overwhelmingly support Barack Obama. Only in Florida do voters say they prefer John McCain; in the other three states, Barack Obama leads by at least forty points. "The Latino vote will be critical in the Southwest and Florida, and results of this poll show very clearly that Latinos may well provide Sen. Barack Obama with the margin of victory," said Matt Barreto in the polling memo. Barreto is a University of Washington professor of...