President Donald Trump and Democratic challenger Joe Biden have one last chance to make their case to voters in critical battleground states on Monday, the final full day of a campaign that has laid bare their dramatically different visions for tackling the nation’s pressing problems and for the office of the presidency itself.

As early voting breaks records across the U.S., political analysts and campaigns are reviewing reams of data on the voters, looking for clues to key questions: Who is voting? And who is winning?