Mike Memoli reports from Joe Biden's Iowa caucus headquarters, where pressure is building on the former Vice President ahead of the first votes of 2020.Feb. 4, 2020
UP NEXT
'Moon bears' rescued after years of torture, used for bile farming
01:05
Search for gunman continues in Illinois parade shooting
05:53
Video from apartment captured shooting at Fourth of July parade in Illinois
03:50
Jan. 6 committee considers criminal referrals of Trump to Justice Department
03:55
July Fourth celebrations canceled in Akron amid protests over fatal police shooting of Jayland Walker
02:46
New York denies air permit to bitcoin mining plant on Seneca Lake amid state climate laws