Former Vice President Joe Biden's campaign is demanding answers from the Iowa Democratic Party over technology "quality control" issues that have delayed caucus results.

What they're saying: "[W]e believe that the campaigns deserve full explanations and relevant information regarding the methods of quality control you are employing, and an opportunity to respond, before any official results are released."

Catch up quick: Organizational and technical problems with precinct reporting are expected to significantly delay the Iowa caucuses' results.

Read the letter here:

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