It also doesn't say in the first memo they were bringing people to MN to REGISTER voters, they were being brought up to VOTE.
But it doesn't say that.
I assume this is what you're referring to: "Together with YDS, DSA’s Youth Section, we are mobilizing to bring young people to Minnesota. Minnesota is one of the few states that allow same day voter registration. We will therefore focus our energy on registering young people. Wellstone will need a high percentage of young people to register and vote for him...."
You are assuming that the young people being brought up to Minnesota are the same young people being registered. But that is an assumption. Indeed, given your theory that they are bringing in outside voters, I don't even understand what the word "percentage" would mean.
And why would they write this: "Because we are focusing on issue-based voter registration, this electoral work can be supported by tax-deductible contributions."
Clearly these people aren't too worried about a possible FEC or IRS investigation of this "issue-based voter registration," even with a Republican in the White House.