Deconstructing the Minnesota caucuses

'Thermonuclear Tuesday'? Only if you go to caucuses

Excerpt:

Although the entire caucus normally lasts a few hours, the presidential preference voting will be among the first orders of business.

People attending the DFL caucuses will be able to cast a secret ballot for a presidential candidate between 6:30 p.m. and 8 p.m. Caucusgoers are not obligated to stay for the remaining caucus business.

Similarly, those who attend the GOP caucuses will conduct a vote during the first half-hour and can forgo the rest of the meeting.

However, it is not possible to vote in either party's preference ballot without going to the caucus location.

Comment: Good article from the Star Tribune with all the details: what happens, how to find caucus location, etc.