Because it is the GOPe road map: Use Cruz in Iowa, use Rubio in N.H. and then on to another candidate...it doesn’t work, but they will keep trying...
The news cycle is being run by Trump, that’s why Cruz is losing all his support, the media isn’t talking about the Iowa Caucus except for the cheating scandal...and the news coming out of N.H. isn’t about Cruz either...
Rubio will be next weeks news, just like Cruz....