National Republican Senatorial Committee Chairman John Cornyn (Texas) has a generous friend at Trump Tower.
Donald Trump cut a $30,800 check to the NRSC in May, online finance records show.
The real estate mogul has been helpful to Senate Republicans before. In the 2010 cycle, he gave about the same amount to the NRSC, plus hosted a fundraiser for the committee at Trump Tower in New York City a few weeks before Election Day.
"We're big fans of his and we're thankful for his support," NRSC Executive Director Rob Jesmer said.
Online records show Trump also cut checks this cycle for Linda McMahon, a Republican seeking Connecticut's open Senate seat, and appointed Sen. Dean Heller (R), who is seeking a full term in Nevada.
Trump donated to a couple of House Republicans, too, including Reps. Allen West (Fla.) and Peter King (N.Y.).