On Thursday morning, the Iowa Democratic Party confirmed it “experienced an unusually high volume of inbound phone calls to its caucus hotline,” which included “supporters of President Trump who called to express their displeasure with the Democratic Party.”

“The unexplained, and at times hostile, calls contributed to the delay in the Iowa Democratic Party’s collection of results, but in no way affected the integrity of information gathered or the accuracy of data sets reported,“ the party statement said.

Trump Fans Flooded Iowa Caucus Hotline, Democrats Say – Bloomberg

hmmm