Hillary Clinton's campaign scooped up 'ThatMexicanThing.com' after Mike Pence mentioned the phrase during the debate

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Mike Pence.

Clinton's running mate, Tim Kaine, and Donald Trump's running mate, Mike Pence, had a heated exchange over Trump's repeated assertions that some Mexican immigrants are "rapists" and "criminals."

Pence, apparently exasperated by the mention, responded "Senator, with that Mexican thing again."

Shortly after the debate ended, a Clinton campaign representative tweeted the URL, "ThatMexicanThing.com."

The internet address leads to a page on Hillary Clinton's campaign website and urges people to donate.

During the debate Clinton's also launched "Literally Trump," a section on the website chronicling all of Trump's contentious comments throughout his campaign.