It strikes me that newly-registered voters are extremely likely to vote. It takes at least some effort to register, so it indicates at least a willingness to become politically involved.
But exactly what percentage do? 70%? 90%?
It takes little effort to register.
Most registration occurs as a result of getting a drivers license or updating an address. Under so-called automatic voter registration, the DMV acts as a registration agency (or sometimes they just send the information over to election officials). A new registered voter will have to mail back a card saying they don't want to be registered.
But under conventional registration, the person has to be offered the opportunity to register. People who don't care about politics might decline. But they might be reluctant to admit that, or perhaps they might think that they "should vote".
A lot of voters are registered to vote during registration drive. If you are at a public event and someone asks you if you want to register and sll you have to do is fill out a card, you might do it, particularly if there is peer pressure.
The fact they weren't registered before indicates a relatively low interest in politics. If someone is 32 YO and not registered, it either means they have moved and might still have a low interest in their new community, or have lived in their current city for 10 years and have never bothered to register or vote.
My guess is new registered voters are less likely to vote, than those who have voted in the last 10 elections.
OTOH, in a state with same day registration, a large share of new registration are on election days. If you include these voters, there might be a very high voting rate.
