Three new York Jewish  billionaires–Henry Paulson, Miriam Adelson, and Paul Singer–have contributed an enormous war chest for unseating Massie.  Trump is contributing his demonization rhetoric:

"We got to get rid of this loser. This guy is bad," Trump said at a rally in Hebron, Kentucky. "He's disloyal to the Republican Party. He's disloyal to the people of Kentucky, and most importantly, he is disloyal to the United States of America. And he's got to be voted out of office as soon as possible."  https://www.unz.com/article/thomas-massie-live-by-the-sword-die-by-the-dagger/ 

What Trump means is that Massie is disloyal to the Israel Lobby.  On Tucker Carlson's show Massie revealed that every member of Congress has an AIPAC babysitter or handler to make certain the member votes in Israel's interest. 

To please Israel, Trump turns on his strongest supporters, such as Massie, Marjorie Taylor Green, and Joe Kent.  As Trump does not tolerate dissent, none of his advisers dare to tell him anything.  Trump's schooling as a Jewish-financed New York real estate developer is not leading to anything good. We have an impetuous and unpredictable president with his finger on the button who listens to no one but Zionist Israel.