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DES MOINES, Iowa. — Former South Bend Mayor Pete Buttigieg and Vermont Senator Bernie Sanders are in an ever-tightening race in the Iowa Democratic presidential caucuses. 

With 97-percent of precincts reporting, Buttigieg had 26.2-percent of the vote and Sanders had 26.1-percent.  Massachusetts Sen. Elizabeth Warren is third, former Vice President Joe Biden is fourth, and Minnesota Sen. Amy Klobuchar is fifth.  

The candidates are now in New Hampshire, campaigning for next Tuesday’s presidential primary. Buttigieg spoke at an event in Concord where he said tackling the problem of climate change is paramount.

“We’ve been warned that by 2030, according to the IPCC, that we have to make a certain number of changes in order to avoid catastrophe,” Buttigieg said. “If that scientific deadline is 2030, then the real deadline is 2020.”

He said in order to get ahead of the problem, the United States needs someone who believes in climate science in the White House now in order to make that 2030 deadline.

(PHOTO: Robyn Beck/Getty Images)