The 2020 election is expected to be the biggest vote by mail in US history, and concerns over changes at the US Postal Service are mounting at a time when many people are seeing delays in their mail for the first time ever. As President Donald Trump and former Vice President Joe Biden make their case for the presidency, Americans are trying to figure out how to vote on November 3. So what does this mean for voters’ ballots?In this episode:Christopher Shaw (@chris_w_shaw), historian and author.For more:Check out Christopher's book, "Preserving the People's Post Office."Connect with The Take: Twitter (@ajthetake), Instagram (@ajthetake) and Facebook (@TheTakePod)