Everything You Need to Know About the Iowa Caucus
<p>Democratic presidential candidate former Vice President Joe Biden speaks during a campaign event Sunday, Feb. 2, 2020, in Dubuque, Iowa. </p>
<p>Democratic presidential candidate former Vice President Joe Biden speaks during a campaign event Sunday, Feb. 2, 2020, in Dubuque, Iowa. </p>
<p>Elly Schlein walks after an interview with Associated Press in downtown Bologna, Italy, Thursday, Jan. 30, 2020.</p>
<p>In the left Nov. 12, 2019, photo, Pamela Anderson poses during the Gut Aiderbichl Christmas Market opening in Henndorf am Wallersee, Austria. In the right, May 1, 2007, photo, Jon Peters receives his star on the Hollywood Walk of Fame in Hollywood, California.</p>
<p>File photo of an ambulance</p>