"He's clearly now in complete control of the Republican Party," said Daniel Weiner, director of the Brennan Center's Elections and Government Program.

"Patronizing his businesses has become one of the accepted ways that candidates and public officials express their loyalty to the party's leader."

"More recently, one of Mar-a-Lago's top political spenders has been Arizona Senate candidate Kari Lake, whose campaign dropped more than $100,000 there so far this year. Most of that spending came in April, when Lake held a fundraiser at the resort that raised $1 million, according to Axios."