In the last few weeks, Joe Biden has led President Donald Trump by a fairly consistent eight point average in national polls and has maintained leads in more than enough battleground states to win the Electoral College, including Arizona, Michigan, Pennsylvania and Wisconsin — all states Trump won in 2016.
But there are signs Trump’s ground operation is paying off when it comes to registering new voters in key states, an advantage that could become important if the race tightens before Nov. 3.
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