Live from Des Moines, Iowa, Mike Barnicle and Morning Joe panel discuss likely scenarios ahead of tonight’s caucuses. “What happens if Ted Cruz’s people in the caucus can wean away Ben Carson supporters?,” asks Mike of the GOP presidential race in Iowa, which the latest poll has Donald Trump leading Senator Ted Cruz by five points. Watch the conversation here and listen to the various roads to possible victory for Senator Ted Cruz (R-TX). Only on MSNBC.