WASHINGTON (AP) -- Donald Trump and House Speaker Paul Ryan pledged to work together despite their differences after a meeting Thursday aimed at unifying a party torn over Trump's rise to the cusp of the Republican presidential nomination. The speaker stopped short of a full-throated endorsement but appeared closer to one.

Trump and Ryan issued a statement describing their meeting as a "very positive step toward unification" that recognized "many important areas of common ground" as well as areas where they disagree. Ryan stunned Republicans by withholding his endorsement a week ago when it became clear Trump was on a firm path to the nomination.

The much-anticipated meeting unfolded as more Republicans have begun urging the party to put the extraordinary discord behind. The statement by the two suggested both are invested in tamping down Republican infighting as they try to pull the GOP together for the fight against Hillary Clinton and Democrats in the fall.

Ryan told a news conference they are "planting the seeds" to accomplish that.

In a tweet, Trump said: "Great day in D.C. with @SpeakerRyan and Republican leadership. Things working out really well!"

Trump, in a black SUV, slipped from one GOP power center to another on a fence-mending mission made necessary by his outsider status in the city that embodies insiders.

The billionaire's provocative, crowd-rousing pronouncements, his arsenal of insults hurled at rivals and his amorphous positions on matters dear to conservatives have unnerved many GOP leaders who fear he will be crushed in the fall. At the same time, more are recognizing that he's tapped a deep nerve among many of the disaffected - and the GOP has no alternative to him in any event.

Rep. Tom Cole of Oklahoma, an ally of GOP leadership, said Thursday his biggest worry about Trump is that he is "'unpredictable." Yet Trump is also a "change agent," Cole said. "That's exactly what people want right now, so in that sense he's very well-positioned for a general election."

The highest-ranking woman in the House GOP leadership, Rep. Cathy McMorris Rodgers of Washington state, said the meeting gave her a chance to make this core value clear to Trump: "Dreaming big for everyone and turning its back on no one."

About a dozen protesters who oppose Trump's immigration positions demonstrated at the front of the RNC building where the men met. They chanted "Down, down with deportation. Up, up with liberation." They carried a cardboard coffin that they said represents the suffering of immigrants under GOP policies and the death of the party under Trump.

The scene was similar outside Senate Republican campaign offices where Trump gathered later with Senate Majority Leader Mitch McConnell and other top Republicans from that chamber. "The GOP is dead to our community," said Deyanira Aldana, 21, a protester who is the child of Hispanic immigrants. "And Donald Trump is the final nail in that coffin."

Republican Rep. Lee Zeldin of New York, a Trump supporter, said it will help both the candidate and the speaker if they can work overcome their rift.

"I don't think it's do or die, any endorsement in particular," he said. But "Donald Trump's candidacy is strengthened with an endorsement from the most powerful person, top-ranking Republican in the country. It helps."

On the eve of the meetings, Trump eased his defiant tone of recent days. Asked on Fox News who leads the party in his view, he said Ryan. "I would say Paul for the time being and maybe for a long time," he said.

"We can always have differences," he said. "If you agree on 70 percent, that's always a lot."

The two men represent vastly different visions for the Republican Party, and whether they can come together may foretell whether the GOP will heal itself after a bruising primary season or face irrevocable rupture.

Trump, for years a registered Democrat, has offended women, Hispanics, and others while violating establishment party orthodoxy on numerous issues Ryan holds dear, from trade to wages to religious freedom. Ryan, a policy-focused conservative, insists the GOP must be a party of ideas, and has championed an agenda that has drawn Trump's scorn by pushing cuts in Medicare and other government programs.

Indeed, a broader swath of Republican voters appears to be moving behind Trump, despite big-name holdouts such as Ryan, both former president Bushes and the party's 2012 nominee, Mitt Romney. Romney went after Trump on Wednesday over his refusal thus far to release his taxes, calling it "disqualifying" and asserting that the only explanation must be "a bombshell of unusual size."

Still, almost two in three Republican-leaning voters now view Trump favorably, compared with 31 percent who view him unfavorably, according to a national Gallup Poll taken last week. The numbers represent a significant improvement for Trump from Gallup's survey in early March.

Trump met first with Ryan and party chairman Reince Priebus, then with Ryan joined by other senior House GOP leaders, then with McConnell and other top Senate Republicans. "Very good, constructive meeting," McConnell said after.

McConnell was quick to embrace the mogul after he clinched the nomination and said this week Trump is looking like he'll be "very competitive" in November.

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