Battleground state poll shows Biden leading Trump in Michigan, Pennsylvania and Wisconsin

New surveys in three key battleground states show former Vice President Joe Biden with solid leads over President Donald Trump as both candidates head into their nominating conventions later this month. Biden's advantage in Michigan, Pennsylvania, and Wisconsin is largely the result of consolidating the Democratic vote and attracting support from voters who supported minor party candidates or did not vote in 2016. Since February, previously undecided voters have shifted in Biden's direction, and views surrounding Trump's handling of both the coronavirus and protests over policing are closely tied to vote choice. Trump's struggle is partly due to his weaker position among white voters than was seen in his victory four years ago. These findings are from the second of several 2020 battleground surveys from the Elections Research Center at UW-Madison. The poll in Wisconsin is conducted in collaboration with the Wisconsin State Journal. Interviews were conducted between July 27 and August 6.