Story highlights Trump spokeswoman Katrina Pierson misstated facts

Sam Clovis said he doesn't know where Pierson got her information, but said "facts are important"

Washington (CNN) Donald Trump's campaign co-chair Sam Clovis said Thursday that inaccurate and exaggerated statistics about US military deaths by Katrina Pierson, the campaign's national spokeswoman, "won't happen again."

Clovis told CNN's Alisyn Camerota on "New Day" that he's not sure where Pierson got her information, but said the campaign is "fixing it."

The issue arose the day before, when Pierson was on "New Day." While Pierson was admitting that she had been wrong in alleging President Barack Obama and Hillary Clinton were responsible for the death of Capt. Humayun Khan in Iraq in 2004 -- well before Obama took office or Clinton was in the administration -- she sought to defend herself with statistics that were also incorrect.

"That's why I used 'probably' (about their responsibility), because I was just going through the time line," she said. "Because since then, we have had tens of thousands of soldiers that have been lost. One million wounded."

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