13 JANUARY 2020 - WEST DES MOINES, IOWA: TOM STEYER, right, speaks to a crowd of about 70 people at a house party in West Des Moines Monday night. CHANNING DUTTON, a Des Moines attorney, left, hosted Steyer. The main issue was climate change, which Steyer has said is his top priority. Steyer, a California businessman, is campaigning to be the Democratic nominee for the US Presidency in 2020. Iowa holds the first selection event of the 2020 election cycle. The Iowa Caucuses are Feb. 3, 2020. PHOTO BY JACK KURTZ