By Reuters Staff Slideshow ( 5 images ) AMSTERDAM (Reuters) - The Dutch government on Tuesday said that it would adjust rules for accepting mail-in ballots in an ongoing national election, after reports people had made a minor mistake in the proceedure. The election, in which Prime Minister Mark Rutte’s conservative VVD Party is expected to gain enough support to secure a fourth term, is running for three days, March 15-17, to allow social distancing room at polling stations. In addition, people 70 years and older were allowed to vote by mail for the first time. An estimated 6% of voters cast a ballot in person on the 15th, with the lion’s share expected to vote in person on the 17th. Mail-in votes have already been received but will not be tallied until the 17th, with roughly a third of eligible seniors expected to vote by mail.