If this was 2012, the Texas primary would have been too late for Cruz. He would have wilted away before the month of May when Texas had their primary in the past.
Actually, TX had March primaries in 2008 and before; 2012 was delayed by a federal court.
54 drops immediately to 52 with the losses in IL and WI. NH may be lost too, dropping to 51. Not much room to maneuver. And no pickup chances, it seems. McC will no longer be majority leader; Schumer will.