Don’t Sleep On Iowa,” is more than just a motto on her blue t-shirt, Iowa House Democratic leader Jennifer Konfrst shouted to Kamala Harris supporters gathered in the basement of a local party headquarters in Waukee.

Revered Iowa pollster J. Ann Selzer on Monday responded to the attacks Donald Trump made against her after her bombshell poll showed him trailing in the state. The Des Moines Register/Mediacom poll conducted by Selzer and published Saturday showed Kamala Harris leading Trump by three points—47 percent to 44 percent—in Iowa,

Rachel Maddow talks with Iowa pollster J. Ann Selzer about her surprising findings that Kamala Harris is leading Donald Trump in what is otherwise considered a reliably Republican state, and the role of voters over 65 years old and "likely voters" in understanding that result.