"'Are we going to be a slave state or are we going to be a free state?' And it was in 1861 that the people of Kansas decided that we were going to be a free nation", Ocasio-Cortez said.
Sanders said this year's midterm election is a chance for the state to send a message to Washington. "It was when we were deciding who we wanted to be as a country".
In 2016, Yoder won the House vote in his district by 11 points, however, Hillary Clinton won the district by a single point.
But, said Ocasio-Cortez, "wherever there is working-class people, there is hope for the progressive movement".
Alexandria Ocasio-Cortez, the democratic socialist who unseated a top Democrat in the U.S. House of Representatives, and Sen.
"Even our Democrats around here are not socialist democrats", he said.
Liberals argue that they are not just convincing moderate Democrats or disaffected Republicans but also engaging new primary voters, as Ocasio-Cortez did in NY this summer and as Sanders did in his insurgent 2016 presidential campaign. "If someone would describe the 3rd District, I would say center-right". "If we become more divided, then we can do that as Democrats, we are just not going to win". And despite surging energy among leftist Democrats in the Trump era, it was unclear if there were enough votes in the 3rd District for a liberal Democrat to win.
Yet Sanders and his brand of liberalism have proved popular. Voters in this district are quite intelligent. And Democrats have seen more than 20-point swings in special elections in some states and districts over the previous year and a half, including in Kansas' 4th District. Republicans outnumber Democrats by 2-to-1 in the 4th District.
But Sanders remained hopeful about Democrats' prospects in GOP-held states, contingent on their ability mobilize disaffected voters.
"If you look at my votes and my positions, I've always sided with the best of interests of the people of this district - and this country", Clay said.
And candidates promoting Sanders's agenda have won Democratic primaries in several of these districts, such as in Orange County, Calif., and suburban Philadelphia.
But progressives see potential avenues in the state's 2nd and 3rd Districts to take down moderate Democrats in the August primary and compete against incumbent GOP Rep. The 28-year-old Democratic rising star is stumping for two young, progressive Democrats hoping to win Democratic primaries in Kansas and MI.
She faces first-term Republican Rep. Don Bacon in this Republican-leaning district, where Trump won narrowly in 2016 but Mr. Obama won in 2008.