[kingu]

Yes, it was the Cruz campaign:

Cruz spokesman Rick Tyler confirmed to IJ Review that the mailer was theirs in a phone call Friday evening, saying that the targeting had been ''very narrow, but the caucuses are important and we want people who haven't voted before to vote.'' (link)

[Protect the Bill of Rights]

Thanks for the info.

[HiTech RedNeck]

But this is an example of sending vinegar at a problem that would be better solved with honey. “Your neighborhood has been a low voting neighborhood in past primaries. Primaries count! Could we please have your vote?”