The FCC's repeal of net neutrality rules is set to be published in the Federal Register on Thursday, finally making the roll-back of those rules official after the December party-line vote.

Why it matters: Publication in the Federal Register formally opens up the repeal to a court challenge by net neutrality supporters. It also starts the clock on Democrats' efforts to reverse the FCC's decision through the Congressional Review Act. Congress has a window of 60 legislative days to get the votes needed.

Yes, but: Even if enough lawmakers sign on to a CRA measure, it's doubtful that President Trump would sign it.