This article from 4/30 was enough to satisfy me
The retired Lieutenant General, who pled guilty to lying to the FBI while serving the Trump administration, will be hitting the campaign trail this coming week. And he will be doing so for Troy Downing, a Republican businessman and Air Force veteran competing to win the Republican nomination, next Sunday in Billings. This is the second time that Flynn has appeared at a campaign event for a Republican candidate this year.
https://www.thedailybeast.com/michael-flynn-is-back-on-the-campaign-trail-in-montana-to-unseat-jon-tester