It looks like the FEC received orders not to pursue that any further.
Reading between the lines. Of what Jake Tapper is saying:
“Cruz pushed this all day and it was a freakazoid speech, too long, insane. Carly came out and acted like a circus freak with her singing to the girls. This was a boner move overall.”
Wolfy: Did they just ruin their small chances?
Tapper: pretty much.
I wonder who ordered it? Most likely the GOPe.
Do you happen to have a link for that info?