After seeing either of the ninth and tenth debates, 34% of Democrats and Democratic-leaning independents said Sanders has the best chance of defeating the incumbent president. The next closest competitor is former Vice President Joe Biden, with 25%, followed by former New York City Mayor Michael Bloomberg, 15%, and Massachusetts Sen. Elizabeth Warren, 11%…

Of the top two candidates, those under age 50 were much more likely to say Sanders is the strongest candidate to face Trump, and Biden was considered best positioned by those over 50, but his support is more stratified across the age groups.

Among the four in 10 Democrats and Democratic-leaning independents who watched any of the debates, considered to be some of the most engaged voters in the party’s electorate, one-third said the debates worked in Trump’s favor, and weakened Democrats’ chances of defeating the president in the general election.