[Missouri gal]

In Missouri, we almost always have other issues that are on all ballots, such as the Medicare expansion measure on today's ballot. If they tossed a lot of R ballots, the measure would certainly pass. They can also pre-dispose a primary winner if they know which ballots to toss-or substitute?

[Magnum44]

I am not validating what is shown here, but it would make some sense that since ballots in a primary are party specific, you might have indication of what party (not the actual votes inside) the ballot was associated with so that the primary votes get tallied by party reps. I am just guessing here, so I could be wrong. In CO we have to register as either in a party or as an independent, and if you register independent, you dont get to vote in primaries. That is the only reason to stay in the party in my opinion.

[KarlInOhio]

That makes sense. I hadn't thought of common issues on all the primary ballots. I rescind my previous lack of concern. The ballot should be hidden until it is opened by the board of elections in front of witnesses from both parties.