PHOTOS: Elizabeth Warren's 2020 campaign kicked off with an Iowa visit that included a selfie stick attack and questions about her recent DNA test

• Elizabeth Warren embarked on a four-city tour in Iowa over the weekend after announcing she was launching an exploratory committee for president. 
• Warren traveled to Des Moines, Council Bluffs, Storm Lake and Sioux City. 
• One attendee questioned Warren's decision to take a DNA test last year to prove her Native American heritage to President Donald Trump.
• Outside another event, a Trump supporter was arrested for allegedly assaulting another attendee with a selfie stick. 

Democratic Sen. Elizabeth Warren finished a four-city tour in Iowa on Sunday, opening 2019 by visiting one of the most critical states on her path towards obtaining her party’s nomination for the 2020 presidential race.

On December 31, Warren announced on Twitter and her website that she’d be launching an exploratory committee for president. She followed that up by unveiling plans on Tuesday to travel to Iowa over the weekend, which will hold the first presidential nominating contest for Democratic candidates in a little over a year for the 2020 race.

<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">Every person in America should be able to work hard, play by the same set of rules, &amp; take care of themselves &amp; the people they love. That’s what I’m fighting for, &amp; that’s why I’m launching an exploratory committee for president. I need you with me: <a href="https://t.co/BNl2I1m8OX">https://t.co/BNl2I1m8OX</a> <a href="https://t.co/uXXtp94EvY">pic.twitter.com/uXXtp94EvY</a></p>&mdash; Elizabeth Warren (@ewarren) <a href="https://twitter.com/ewarren/status/1079734725323964417?ref_src=twsrc%5Etfw">December 31, 2018</a></blockquote>
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Warren, who left Friday for Iowa, visited Des Moines, Council Bluffs, Storm Lake, and Sioux City. The trip was the Massachusetts senator's first public appearance since announcing her consideration of entering the 2020 race, save for speaking to the media outside her home following the announcement.  

Here is what you need to know about Warren's trip. 

Warren's trip to Iowa comes after she decided not travel to the Hawkeye state during the 2018 midterm elections. She was the only major potential 2020 candidate to not travel to Iowa during that time.

Source: Politico

During her first appearance on Friday, Warren took shots at some other potential Democratic candidates, suggesting billionaires would not be able to represent the party. Tom Steyer, an environmentalist and billionaire, and Michael Bloomberg, the former New York Mayor and successful business man, are reportedly considering entering the 2020 race as Democratic candidates.

Source: AP

"I think that campaigns should not be for sale," Warren said. "Whether we're talking about super PACs or self-funding as Democrats in a primary."

Source: AP