KEY POINTS
  • Fewer voters both nationally and in six swing states said they plan to vote by mail than did two weeks ago, according to new CNBC/Change Research polls. 
  • The largest change is seen among Democrats, who are the group most likely to say they will cast ballots by mail. 
  • The shift comes amid concerns that changes at the U.S. Postal Service will hinder the ability to count mail-in ballots as in-person voting poses risks during the coronavirus pandemic. 
An election worker opens envelopes containing vote-by-mail ballots for the August 4 Washington state primary at King County Elections in Renton, Washington on August 3, 2020.

A smaller share of voters expect to vote by mail in November's election now than did two weeks ago, according to new CNBC/Change Research polls. 

The shift comes as Americans grapple with concerns about whether changes to the U.S. Postal Service will hinder efforts to count an unprecedented number of mail-in ballots. Postmaster General Louis DeJoy has insisted the post office can handle election mail despite the recent removal of some sorting machines and pick-up boxes around the country.