Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Iowa Democrats Expect High Turnout for 2020 Presidential Caucus Kane Farabaugh DES MOINES, IOWA - As a crowd filters into the Horizon Events Center in Clive, Iowa, on an unseasonably warm winter night, it appears as if they are preparing for one of the regular concerts that usually fills this cavernous hall. But what looks like a concert, and sounds like a concert with popular singer-songwriter and Bon Iver frontman Justin Vernon headlining the event playing an acoustic set, is actually a campaign rally for presidential hopeful, U.S. Senator from Vermont Bernie Sanders, one of the candidates leading the polls for Democrats in the final weeks of the Iowa caucuses campaign. The event was filled with Sanders campaign signs, Sanders merchandise, and nearly 2,000 Sanders supporters, and also featured a lineup of speakers, including film director Michael Moore, and Congresswomen Rashida Tlaib, Ilhan Omar and Pramila Jayapal. But noticeably absent from the Bernie Sanders campaign event '¦ was Bernie Sanders himself. Sanders, along with fellow candidates and Senators Amy Klobuchar, Elizabeth Warren, and Michael Bennet, lost crucial time campaigning on the ground in Iowa while attending the impeachment proceedings of President Trump on the Senate floor in Washington, D.C. "In Iowa, we like to see the candidates, we like to see them a lot in fact. That's the joke both here and in New Hampshire, that they can't decide on a candidate until they talk to a person three, four or five times," explained University of Iowa political science professor Timothy Hagle, reinforcing the importance of personal interaction between voters and candidates ahead of the caucus. "Especially as we are in these closing weeks we like to see the candidates rather than a surrogate." While Sanders made a brief phone call to address the supporters at his concert campaign event, he and other candidates stuck out of state relied heavily on surrogates in the final weeks to spread their message and rally voters. .