Democrats gather at caucus sites to nominate Obama

Michigan Democratic caucuses held Saturday

Headline Goes Here

LANSING, Mich. - Democrats are getting ready to gather at more than 200 caucus sites around the state to formally choose Barack Obama as their presidential favorite.

Registration will be from 9 a.m. to 11 a.m. EDT Saturday, with voting beginning immediately afterward.

Voters must indicate at registration that they're participating as Democrats, but there's no requirement to join the party or even be a registered voter. Participants have to be eligible to vote in November, a requirement that will allow those not quite 18 to vote in the caucuses.

Participants must go to their assigned caucus site, which can be found at .

Democrats who voted in the Feb. 28 presidential primary can still attend the caucuses and vote.

Michigan native Mitt Romney narrowly won the state's Republican presidential primary.

Copyright 2012 by The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.