On Saturday, the son of the “weak,” “low energy,” “desperate,” “failed,” and “pathetic” former governor Jeb Bush told Texas voters to get in line and support the man who humiliated his father on the national stage.

George P. Bush, the Texas land commissioner and G.O.P. victory chairman, implored state activists on Saturday to vote for Donald Trump, whose brutal and unrelenting ridicule prematurely ended his father’s presidential bid.

“From Team Bush, it’s a bitter pill to swallow,” Bush told Republicans, according to video of the meeting. “But you know what? You get back up and you help the man that won, and you make sure that we stop Hillary Clinton.”

George P. Bush, whose mother is a Mexican immigrant, is the only member of the Bush family who has broken from its unanimous silence about Trump. The two former presidents, George H.W. Bush and George W. Bush, have not endorsed Trump and did not attend the Republican National Convention in Cleveland, a snub that many took as a sign that they may never support the man who routinely savaged Jeb on national television, particularly during debates. Jeb himself has indicated that he would not endorse Trump, saying that he believed that Trump would cause catastrophic Republican losses in Congress.

Whether deserved or not, Bush became the candidate most associated with Trump’s then favorite insult, “low energy.” Prior to Trump’s entrance into the race, Bush was the widespread favorite to win the nomination, due to his family name, his experience as the governor of Florida, his affinity with the Latino community, his ability to speak Spanish, and his $110 million in super-PAC funds. All of those things ended up being liabilities in 2016, a year in which Trump’s anti-immigrant, anti-establishment, and anti-money-in-politics rhetoric resonated with the American people.

Even Trump acknowledged that he may have gone a little too far in ribbing Bush repeatedly, acknowledging that he understood that Bush and his family would have trouble supporting him. “I was rough with Jeb Bush. And I think if I was Jeb Bush, I wouldn’t vote for me either, if you want to know the truth,” he admitted in a recent ABC News interview. Trump’s moment of empathy for his defeated rival was quickly followed by a demand that Bush and co. support him anyway, because “they’re Republicans”—a similar pitch the billionaire’s allies have been shopping in their latest outreach attempts to the same donor class that Bush relied on and that Trump savaged during the primary.

Bush did not immediately respond to a request for comment.