Saturday
CEDAR RAPIDS:
• Elizabeth Warren: 12:30 p.m., Kohawk Arena, Coe College, 1220 First Ave. NE, Cedar Rapids. Rally with Congresswomen Ayanna Pressley. Doors open at 11 a.m.
• Joe Biden: 1:30 p.m., Roosevelt Creative Corridor Business Academy, 300 13th St. NW, Cedar Rapids. Doors open at 1 p.m.
• Bernie Sanders: 6 p.m., U.S. Cellular Center, 370 First Ave. NE, Cedar Rapids. Concert with Vampire Weekend. No tickets required.
• Pete Buttigieg: 6:30 p.m., The Hotel at Kirkwood Center, 7725 Kirkwood Blvd. SW, Cedar Rapids. Doors open at 6 p.m.