Actually, it was the Tea Party Express, which is one of several nationally oriented tea party groups, and it was partially because Ward is a dumbass. It's a bit controversial - not because of his beliefs, per se, but more that he represents a vote for Nancy Pelosi to become Speaker again. There's debate within the movement as to whether endorsing Democrats for Congress, even conservative Democrats like Minnick, is the right thing to do in this election given those circumstances. There's little debate over whether Democrats CAN be endorsed, especially in non-Congressional races, but the debates are over whether they SHOULD be endorsed, especially IN Congressional races.
ID-1 is certainly going to be interesting to watch.