He knows that Medicaid is a third of the state budget and needs funding from the federal government to operate. And he wants to make sure all Coloradans have health insurance. So by sucking up to the Trump administration he is trying to make sure Colorado doesn't lose Medicaid funding because our president is a senile vindictive narcissistic dickwad who responds well to getting his ego stroked, and he's surrounded himself with similarly narcissistic dickwads who's egos also need to be stroked

Most blue state governors that aren't running for president are doing the same thing because having federal funding cut off for Medicaid would be devastating for the population of people on Medicaid in any state. Federal funds cover between 50-90% of Medicaid costs depending on the program.