Majority Leader John Thune's 'old-fashioned' approach to the Senate has kept Trump on board so far / John Thune and the Senate's Age of Irrelevance / Wary Senate Republicans have demands for John Thune / Laken Riley Act gives John Thune his first big win as Senate GOP leader / Majority Leader John Thune picks four senators to form his kitchen cabinet / Meet Leader John Thune's all-star cabinet as Republicans take over Senate majority / Senate Majority Leader John Thune speaks at Jimmy Carter's service at U.S. Capitol / Senate Majority Leader John Thune says Trump Cabinet picks will get 'fair process' / John Thune is still willing to challenge Trump / Majority Leader John Thune says he'll help Trump understand "what's realistic" in the Senate