My guess is Cruz wins SC with Trump coming in 2nd or 3rd.
Bush and Kasick are done after SC!
If Cruz wins SC that gives him a strong springboard going into the March 1 primaries. If Trump does not rebound it will come down to Ceuz and Rubio.
If Trrump wins, Cruz is second and Rubio third we are setup form March 1 being a major showdown and margins throughout those primaries are critical.
If Cruz wins and Marco is second Trump is basically done.
If Trump is first and Rubio is second Cruz is basically done.
Kasich only wants to finish 4th in the southern primaries, finish second in Michigan and northeast states on March 1 then pull off Ohio and Florida on March 15.