From Maggie Haberman at the New York Times:

Influential Donors Criticize Ted Cruz for His G.O.P. Convention Speech

In an extraordinary public rebuke, two influential donors who were among the biggest supporters of Senator Ted Cruz’s presidential campaign excoriated Mr. Cruz on Saturday for his decision not to endorse Donald J. Trump at the Republican National Convention.

The remarks from Robert Mercer of Long Island and his daughter Rebekah Mercer suggest widening fallout over Mr. Cruz’s convention speech, in which he did not endorse his former rival and, instead, suggested that Republicans should “vote your conscience” for candidates “up and down the ticket.”

“Last summer and again this year, Senator Ted Cruz pledged to support the candidacy of the nominee of the Republican Party, whomever that nominee might be,” the Mercers, who rarely comment in the news media, said in the statement to The New York Times. “We are profoundly disappointed that on Wednesday night he chose to disregard this pledge.”

The statement continued: “The Democratic Party will soon choose as their nominee a candidate who would repeal both the First and Second Amendments of the Bill of Rights, a nominee who would remake the Supreme Court in her own image. We need ‘all hands on deck’ to ensure that Mr. Trump prevails.”

“Unfortunately,” the statement added, “Senator Cruz has chosen to remain in his bunk below, a decision both regrettable and revealing.”

The Mercers invested at least $11 million in Keep the Promise I, one of a group of interlocked “super PACs” that supported Mr. Cruz in his presidential run. During the contentious primary race, Mr. Cruz had early praise for Mr. Trump on the belief that his candidacy would eventually fade and that Mr. Trump’s voters would move over to the senator’s camp.