GOP frontrunner Donald Trump spoke to a crowd of roughly 1,000 in Omaha, Nebraska, where Gov. Pete Ricketts put his support behind the presumptive Republican nominee.

Ricketts was expected to endorse Ted Cruz this week. Some of Ricketts' first words on stage: “Politics is won by the people who show up." — Vaughn Hillyard (@VaughnHillyard) May 6, 2016

Trump said he won’t talk about his former competition, naming Jeb Bush, who announced on Friday he will not support Trump in the general election.

“I will not say he’s low energy,” Trump said. “I’m not surprised with the Bush family,” he added regarding their not supporting him. “And Jeb, we hit hard.” Trump added that Jeb Bush hit him as well, spending $14 million on ads against him.

“I won’t talk about Lindsey Graham who had like one [percentage] point,” Trump added. Graham, like Bush, has announced he won’t support Trump.

Trump said Graham is “on television knocking me all the time.”

“We need new thinking,” he added. “He fails with his campaign horribly” and “he’s like bad luck, as soon as he endorses the people, they drop out!”

“You’re supposed to be coming together,” Trump said about the Republican Party now that he’s the presumptive nominee.

“Paul Ryan, I don’t know what happened,” Trump said of Ryan saying he’s not ready to support Trump.

The crowd booed when Trump mentioned Ryan’s name. Trump said he had a pleasant call a while before with Ryan, so he thought he’d be supportive.

Trump transitioned to praising those who have endorsed him,such as former presidential candidate Texas Gov. Rick Perry and Dick Cheney. “We’ve had tremendous endorsements from a lot of people,” he said. “Rick Perry is an example.”

“He fought hard and he was rough on me,” Trump added about Perry.

Trump said he wants to make America great again for everyone, all groups of people. “I want the women,” Trump yelled, saying he wants to win with the female vote.

Donald Trump kicked off his Omaha rally by encouraging everyone to vote on Tuesday: "The stronger we look, the stronger we are." — Jenna Johnson (@wpjenna) May 6, 2016

Trump just said there were 35K in West Va last night (there were about 13K) and said there are 11K here in Omaha (there are about 1k). — Nick Corasaniti (@NYTnickc) May 6, 2016