About 80,000 Maryland voters were not properly registered to vote in Tuesday's primary election, officials announced on the eve of Election Day.
Motor Vehicle Administration Administrator Christine Nizer initially said 18,761 voters weren't properly registered due to a computer error, but announced Monday that many more people were affected.
No one will be barred from voting due to the error, officials said, but voters who weren't properly registered will need to cast a provisional ballot at the polling place associated with their current address.
Provisional ballots must be counted in Maryland elections, but they won't be counted until July 5.
"It's important for everybody to know that the results released tomorrow night are for Election Day and early voting only," said Margie Roher, a spokesperson for the Montgomery County Board of Elections.
State transportation and elections officials say affected voters need to verify their voter registration information using the state elections board website, so they can use provisional ballots on Tuesday.
Contact the Maryland Board of Elections between 7 a.m. and 8 p.m. at 1-800-222-8683, email info.SBE@maryland.gov or visit the website to find your correct polling place and verify your eligibility.
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State elections officials say the problem relates changes to voter addresses and party affiliation made through the MVA's website or kiosks between April 22, 2017 and June 5, 2018. If the changes were made without buying a driver's license, ID card or other item, they were not submitted to the elections board for processing.
MVA Administrator Christine Nizer says that in the urgency to inform the public due to the imminent primary, the numbers initially reported "did not accurately reflect the total scope of the people impacted."
Two Maryland lawmakers are now calling for Nizer's resignation.
The State Board of Elections has sent 74,000 emails in an attempt to warn voters about the issue.
Gov. Larry Hogan directed the MVA to conduct a review and ordered leadership to be available for legislative hearings, the Governor's Office said in a statement.
"Our administration is obviously incredibly disappointed that this happened. What matters most is that every eligible voter will be able to vote, and every vote will be counted," the statement said.
Rich Madaleno, who is running in the Democratic primary for governor, issued a statement calling the issue a catastrophic failure.
"The chaos being created by this failure subjects real harm to our most cherished democratic values. Literally hundreds of decisions of who are nominees will be have been needlessly put in limbo," the statement said.
There are more than half a dozen candidates on the ballot to determine the Democratic challenger who will run against Republican Gov. Larry Hogan this fall.
Candidates are also being chosen for the state's eight U.S. House seats and one of Maryland's U.S. Senate seats. All 188 seats in the General Assembly will be decided this year.
Attorney General Brian Frosh and Comptroller Peter Franchot are unchallenged in the primary. Their Republican opponents, Craig Wolf and Anjali Phukan, also are unchallenged.
A full list of polling places can be found on the board of elections' website here, and sample ballots can be found here.
