So why didn't Cruz get that process in motion when he became interested in running for President? Why couldn't he start now, when Trump announced his run, and get it settled in the next four years? I can't imagine Mr. Trump wanting to be President for longer that that.
What is Cruz's hurry? If he got it settled over the next four years, he'd become President of country turning around to a better direction, and with a lot of the DC garbage cleaned out.
Who would he sue? You can't just go into court and ask for an opinion. There has to be a case or controversy - a plaintiff and a defendant. Exactly who could Cruz sue over this issue, especially since his position is that there is no issue in the first place? What injury would he allege?