Hello and welcome to News Hour from the BBC World Service coming to you live

from London I'm Nula McGovern. Well as November 5th and Election Day in the

United States edges closer, the presidential

candidates have intensified their attacks on one another.

At a Republican rally in Georgia on Wednesday night, Donald Trump described his opponent as having a low IQ.

She's not a smart person, she's a low IQ individual, she is. She is a low IQ person. On Wednesday night, but this time on CNN, Democrat Kamla Harris was asked whether she believed

Donald Trump was a fascist.

This was her response.

Yes, I do. And I also believe that the people who know him best on this

subject should be trusted.

So the verbal assaults come as Americans vote for the next president of the United States, of course.

And all the polls suggest the contest at this stage is a virtual dead heat.

But on some issues, Donald Trump for the Republicans appears to have pulled away from his Democratic rival

Comila Harris. Immigration for one. It's consistently a top concern for American voters.

James Menendez has been traveling from Mexico to the southern United States

to find out what is driving the debate.

Hello James, where are you exactly?

Hi Nula, yes, thank you very much.

I'm in San Antonio in South Texas. Now it's a part of the country that is at the sharp end of the debate over immigration.

We're just set up in fact in the shadow of the city's most famous monument the alamo the old

Catholic mission where Texan revolutionaries including David Crockett were besieged

and overrun by Mexican forces that was all the way back in the early 19th century.

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