Coons has a Challenger
Coons has a challenger, but unfortunately it isn't a progressive primary challenge. It is Mark Turley of Millsboro.
I can't find any online footprint related to a going campaign, not even on the coo-coo-bananas IPod of Delaware website, but his filing email indicates that he is Mark Turley, Owner/President, of Projected Energy which is a renewable energy consulting firm.
But that is not to say that Turley has any skin in the game. Filing fees are set by the parties and the IpodDE filing fees for this office appear to be $0.00.
And BTW, I insist that you check out the Ipod's coo-coo-bananas web site. I'd post more screen shots, but you just don't get a feel for how WTF?!?! it is unless you visit it.