They are winning primaries so far. That's different from being elected.
[1] https://www.vox.com/2018/9/4/17818204/midterm-2018-polls-gen... (New 2018 midterm poll has Democrats up 14 points on Republicans)
[2] http://nymag.com/daily/intelligencer/2018/09/democrats-surgi... (With the Midterms Two Months Away, Democrats Are Surging in the Polls)
[3] https://www.cnn.com/2018/09/04/politics/midterm-polls-democr... (Democrats have double-digit advantage in midterm elections, polls show)
[4] https://www.cnbc.com/2018/09/05/trump-does-not-want-governme...
[5] https://projects.fivethirtyeight.com/trump-approval-ratings/
[6] https://www.washingtonpost.com/news/opinions/wp/2018/09/04/s...
[1] https://www.vox.com/2018/9/4/17818204/midterm-2018-polls-gen... (New 2018 midterm poll has Democrats up 14 points on Republicans)
[2] http://nymag.com/daily/intelligencer/2018/09/democrats-surgi... (With the Midterms Two Months Away, Democrats Are Surging in the Polls)
[3] https://www.cnn.com/2018/09/04/politics/midterm-polls-democr... (Democrats have double-digit advantage in midterm elections, polls show)
[4] https://www.cnbc.com/2018/09/05/trump-does-not-want-governme...
[5] https://projects.fivethirtyeight.com/trump-approval-ratings/
[6] https://www.washingtonpost.com/news/opinions/wp/2018/09/04/s...