AUGUSTA, Maine (AP) Maine’s secretary of state says presidential candidate and former New York City Mayor Michael Bloomberg sent inaccurate voting information to state residents.

Matthew Dunlap said Tuesday that “several voters” recently received a mailing from the Democrat’s campaign that suggested any voter could participate in the March Democratic primary. Dunlap says the March 3rd primary is closed, and only voters who are registered members of the Democratic Party can vote.

There is also a closed Republican primary that day, though President Donald Trump is the only candidate on the GOP ballot.

The Bloomberg campaign says it regrets the confusion.