A Latino Decisions survey released Monday shows that President Obama still has a huge advantage among Hispanic voters around the country and in Florida.

Obama leads Mitt Romney 63-27 among Hispanic voters in five key states, although it’s a closer race in Florida, with the president taking 53 percent of Hispanic voters compared with Romney’s 37 percent. Of the five battleground states polled by Latino Decisions, Florida represented Romney’s best performance among Hispanic voters.

The poll also found that putting Sen. Marco Rubio (R-FL) on the ticket would do little to sway Hispanics to Romney. About a third of Florida Hispanic voters said Rubio as the VP candidate would make them either much more likely or somewhat more likely to vote Republican, compared with 17 percent who said it would make them less likely to do so. Still, almost half of Sunshine State Hispanics surveyed—47 percent—said putting Rubio on the ticket would have no effect on their vote.

Moreover, putting Rubio on the ticket would mean little to Hispanic voters in Arizona, Colorado, Nevada and Virginia, according to the poll. In the five states combined, 26 percent of Hispanic voters said Rubio as the VP candidate would make them either much more likely or somewhat more likely to vote Republican, compared to 70 percent would said it would either make them less likely to support Romney or have no effect at all.

In the latest indication of how crucial the Hispanic vote will be in November, San Antonio Mayor Julián Castro has been tapped to deliver the keynote address at the Democratic National Convention. Castro is the first Hispanic selected to deliver the keynote address at the Dem convention.

Tags | Barack Obama, Hispanic voters, Julián Castro, Latino Decisions, marco rubio, Mitt Romney