Donald Trump plans to win with or without the Republican Party establishment on his side.

Speaking to NBC News' Hallie Jackson in Las Vegas, Trump said, "It would be nice if the Republicans stuck together."

But a fractured party won't stop Trump from succeeding, he said, claiming: "I can win one way or the other."

For evidence, Trump pointed to the primary season.

"I obviously won the primaries without them. I'm an outsider and I won the primaries," he said. "I do believe that we can win either way. But it would be nice if we stuck together."

Earlier in the week, House Speaker Paul Ryan, R-Wisconsin, told NBC's Chuck Todd that Republicans shouldn't "go against their conscience," even if that means not supporting Trump as the nominee.

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Pressed on whether it bothered him that Ryan was not pushing fellow Republicans to back him, Trump objected, "I don't know that that's what he's saying. He has endorsed me."

He then turned the conversation, as he often does, to the size of the crowds showing up for his rallies.

"You see the crowds I'm getting, you saw last night in Houston, you see today in Nevada, I think we're going to do very, very well."

Notably, Trump has spent more time fundraising in recent days than he had previously in the campaign season.

Trump said his campaign doesn't "need" as much money as Hillary Clinton's, "She's selling herself to Wall Street and the Wall Street fat cats are all putting up a lot of money for her. And I don't even want that kind of money." However, he made it clear he plans on continuing to help the RNC fundraise.

If his own campaign faces money troubles he said he would use however much of his own money he needed to win. But there's a limit to just how much of his fortune he's willing to spend. "I wouldn't be that generous with it outside" his own campaign. "I mean, frankly, people have to contribute money, people have to endorse, people have to really come through," he continued.

Faced with declining poll numbers and concerns about disorganization in his campaign, Trump's attitude is essentially: you ain't seen nothing yet.

"We haven't really started," he told Jackson. "We start pretty much after the convention, during and after."

Finally, questioned on recent reporting that RNC delegates will try to overthrow Trump at the convention, he replied, "I don't believe that. I think that's the press. Number one, they can't do it legally. Number two, I worked for one year and we won all of those delegates."

Trump was adamant that he won the nomination, fair and square.

"I competed along with a lot of establishment people. I beat them all. And now a couple of them would like to come in through the back door. It's awfully hard when I win, what did I when, 37 or 38 states? So I win 38 states and somebody else won none, and they're going to be the nominee? I don't think so."

Meanwhile, in another interview that aired Sunday, Trump continued to expound upon his response to the recent massacre at a gay nightclub in Orlando, which was perpetrated by a Muslim gunman who pledged allegiance to ISIS in his 911 call. Trump told CBS' "Face the Nation" that profiling Muslims is "common sense."

"I think profiling is something that we're going to have to start thinking about as a country," he said. "I hate the concept of profiling. But we have to start using common sense and we have to use, you know, we have to use our heads. ... We really have to look at profiling. We have to look at it seriously. And other countries do it, and it's not the worst thing to do. I hate the concept of profiling, but we have to use common sense. We're not using common sense."

Trump advocated for this type of profiling back in December, after the San Bernardino shooting. Following the shooting in Orlando, Trump congratulated himself on his past statements on terror, then reiterated and expanded his call for a ban on Muslim travel to the United States.