Remember when Donald Trump and Thomas Massie were on the same side?

Remember when Donald Trump and Thomas Massie were on the same side?
byu/ReasonablyRedacted inconspiracy

Thomas Massie is still the same man, with the same convictions, fighting for the same objectives as he was back then when Donald Trump gave him his “Complete and Total Endorsement.”

So why is Donald Trump shitting on him and talking about leading a primary challenge against him, three years later?