‘When a remaining primary state declares Ted Cruz ineligible you let me know, OK!’
That is just it - in the primary, the RATS won’t do anything about Cruz - they want him to be the nominee/vp pick!
If Cruz is the nominee, they will immediately start their challenge/attacks.
Obama had all the help to bury his eligibility issue, but Cruz will not have any help form the GOPe, the media. Only the Cruz supporters who have no power/influence/standing can cry feebly.
Where/When would that Dem challenge come when it's the States that determine eligibly?
This link is old but informative.
Who would be final arbiter on Ted Cruz’s eligibility for presidential run? Tough to say
If you can find another link on the subject I'll read it.