August 8, 2019 10:19 pm Democratic Candidates Flock to Iowa State Fair Every four years, the Iowa State Fair gets special visitors, who have their eye on the Iowa caucuses six months after the summer event. US & World Videos 3:32 Biden on campus protests: ‘Order must prevail' 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 2:15 Opening statements made, witnesses called in hush money trial against Donald Trump 24:46 @Issue: Trump “hush money” trial underway 2:08 Boston announces first chief climate officer