Sen. Cory Gardner (R-CO), who runs the Senate GOP’s fundraising arm, warned his colleagues at a lunch two weeks ago that their legislative failures, including on Obamacare repeal, were badly hurting fundraising. That’s according to a fascinating report by the New York Times’ Carl Hulse, who writes: 

[Gardner] warned that donors of all stripes were refusing to contribute another penny until the struggling majority produced some concrete results.
“Donors are furious,” one person knowledgeable about the private meeting quoted Mr. Gardner as saying. “We haven’t kept our promise.”