A new CNN poll shows Joe Biden's lead over President Trump has shrunk considerably since June.
Overall, 50% of registered voters back the Biden-Harris ticket, while 46% say they support Trump and Pence.
That's right at the poll's margin of error of plus or minus 4 percentage points.
CNN reports across 15 battleground states, Biden has the backing of 49% of registered voters, while Trump lands at 48%.
Overall, 53% of voters describe themselves as "extremely enthusiastic" about voting in November -- that's a new high in CNN polling.
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