Fewer than one percent of the voters in the June 8th Primary registered to vote that day. State law lets Iowans go to a polling site and register to vote on the day of an election. They are to show a photo I-D and some proof of residency, like a utility bill.

Just over 2,100 Iowans used election-day registration to vote in last month’s primary. That is just a fraction of the nearly 303,00 voters who cast ballots in the June 8th Republican and Democratic Primaries.

During the last presidential election, in 2008, almost 46,000 Iowans registered to vote on Election Day. Half of them had been registered to vote, but had moved into another area of the state and cast ballots in their new home precinct.