Has to help Rubio, right? If Kasich suspends too, Rubio becomes a power candidate with an extra 15 percent support behind him. That would have pushed him past Trump in SC. Clear out the also-rans and this is a new race.
I think most of Jeb's supporters will end up with Rubio, but I'm not so sure that Rubio will get Kasich's supporters in large numbers. Kasich, in an effort to to paint himself as the most moderate of the Republican primary candidates, avoided the rhetoric being used by the others. He talked about working together and getting things done. Rubio has painted himself into the far right corner in an effort to appeal to the far right base. Rubio's comments about stonewalling a Supreme Court nominee and other issues may not appeal to the moderate Republicans and Democrats who are supporting Kasich. Rubio has not been portraying himself as someone who can bring Republicans and Democrats together to get things done. Some of Kasich's support could even go to Sanders or Clinton.