By Natasha Korecki, Elena Schneider
POLITICO
September 21, 2019
DES MOINES — Joe Biden moved quickly under an arch of balloons and a marching band, past an ice cream truck and dozens of supporters — then he lit into Donald Trump.
At the Polk County Steak Fry, one of the biggest political affairs of the year here, where presidential candidates work to woo Iowa caucus goers, Biden’s early order of business instead was first to wrest control of a burgeoning scandal involving Trump and the Ukraine.