CNN

Voters cast early ballots Wednesday at a shopping mall in Las Vegas, Nevada.

WASHINGTON (CNN) - A number of states try to make voting a little easier by allowing voters to choose all the candidates from a single party with a single vote.

Watch: Straight party voting problems

The process is known as straight-party or straight-ticket voting. But while it sounds straightforward, the CNN Voter Hotline has gotten a number of calls with concerns about whether the option works.

In Pennsylvania, an e-mail being circulated warns people about voting a straight ticket.

"The e-mail said that it won't count your vote," Gwen Bryant of Chester, Pennsylvania, told the Voter Hotline.

"We've gotten a lot of calls about this," said Leslie Amoros, a spokeswoman for the Pennsylvania Department of State.

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