How the Iowa Caucuses Work and What’s New for 2020

The Iowa caucuses, on Feb. 3, will start the process of anointing the Democrat who will take on President Donald Trump in November. A vestige of old-style organizing in an age when most political action has moved online, Iowa’s caucuses can seem obscure and anachronistic to outsiders. Some changes this year in response to long-running criticism of Iowa’s importance and procedures might make things even more complicated.