HANOI, Vietnam -- Days before returning home from a whirlwind trip to Asia, U.S. President Donald Trump was back on the defensive over Russian election meddling, saying he considers President Vladimir Putin's denials sincere, dismissing former U.S. intelligence officials as "political hacks" and accusing Democrats of trying to sabotage relations between the two countries.
Speaking to reporters aboard Air Force One, Trump said Russian President Vladimir Putin had again vehemently insisted -- this time on the sidelines of an economic summit in Vietnam -- that Moscow had not interfered in the 2016 U.S. elections. Trump declined to say whether he believed Putin, but he made clear he wasn't interested in dwelling on the issue.
"He said he absolutely did not meddle in our election. He did not do what they are saying he did," Trump said as he travelled to Hanoi, the second-to-last stop of his Asia trip.
"Every time he sees me, he said: 'I didn't do that.' And I believe -- I really believe -- that when he tells me that, he means it," Trump said. He called the accusation an "artificial barrier" erected by Democrats -- once again casting doubt on the U.S. intelligence community's conclusion that Russia tried to interfere in the election to help the Republican Trump beat Democrat Hillary Clinton.
The president lashed out at the former heads of the nation's intelligence community, and said there were plenty of reasons to be suspicious of their findings. "I mean, give me a break. They're political hacks," Trump said, citing by name James Clapper, the former director of national intelligence, John Brennan, the former CIA director and his ousted ex-FBI director James Comey, whom Trump said was "proven now to be a liar and he's proven to be a leaker."
In a tweet sent Sunday from Hanoi, Trump bashed the "haters and fools" he said are questioning his efforts to improve relations with Russia and accused critics of "playing politics" and hurting the country.
Trump's comments about Putin and "political hacks" brought criticism from lawmakers with ties to the intelligence community. Rep. Adam Schiff, the California Democrat who is his party's top member on the House's intelligence committee, said in a statement that Trump "fools no one" and that the president understands how the Russians intervened through hacking, social media and their own television coverage of the presidential race.
Sen. John McCain, R-Ariz., the party's presidential nominee in 2008, said in a statement that Trump's faith in Putin's denial was "naive."
"There's nothing 'America First' about taking the word of a KGB colonel over that of the American intelligence community," McCain wrote, referring to Putin's former career in Soviet intelligence. "Vladimir Putin does not have America's interests at heart."
Trump arrived in Hanoi for a brief state visit and on Sunday made his way to the Vietnamese presidential palace for a meeting with Vietnam President Tran Dai Quang.
In remarks briefly after his arrival, Trump offered his help in negotiating with China on disputes over the South China Sea. Beijing's island-building there has drawn criticism from Washington, which argues the U.S. has a national interest in freedom of navigation in sea lanes critical for world trade. Secretary of State Rex Tillerson earlier this month said China's "provocative actions" challenge international law and norms.
"If I can help mediate or arbitrate, please let me know," Trump offered. "I'm a very good mediator and a very good arbitrator. I've done plenty of it from both sides."
Trump also said he hoped to have more help from Chinese President Xi Jinping as well as Russia, when it comes to isolating North Korea. "The North Korean situation continues to be a problem. President Xi I think is going to be a tremendous help. I hope Russia likewise will be a tremendous help. I think they can make a big difference," he said.
Trump and Putin did not have a formal meeting while they were in Vietnam for the Asia-Pacific Economic Cooperation summit, but the two spoke informally several times and reached an agreement on a number of principles for the future of war-torn Syria.
Trump made clear that the issue of Russian meddling in the election hovers over the leaders' relationship and said it jeopardized their ability to work together on issues including North Korea's escalating nuclear program and the deadly conflict in Syria.
"Having a good relationship with Russia's a great, great thing. And this artificial Democratic hit job gets in the way," Trump told reporters. "People will die because of it."
Trump danced around the question of whether he believed Putin's denials, telling reporters that pressing the issue would have accomplished little.
"Well, look, I can't stand there and argue with him," Trump said. "I'd rather have him get out of Syria, to be honest with you. I'd rather have him, you know, work with him on the Ukraine than standing and arguing about whether or not -- 'cause that whole thing was set up by the Democrats."
Multiple U.S. intelligence agencies have concluded that Moscow meddled in the 2016 election to try to help Trump win. But Trump called the former heads of those agencies "political hacks" and argued there's plenty of reason to be suspicious of their findings.
The comments made clear that Trump still does not take the meddling seriously and sees little benefit in punishing a nation accused of undermining the most fundamental tenet of American democracy: free and fair elections. They also suggest that Trump is unlikely to work aggressively to try to prevent future meddling despite repeated warnings from senior intelligence officials that Russia is likely to try to interfere again.
Meanwhile, a special counsel investigation of potential collusion between Moscow and Trump campaign aides so far has resulted in two indictments for financial and other crimes unrelated to the campaign, as well as a guilty plea. Congressional committees have also been interviewing campaign and White House staff.
"Trump really raised the topic of so-called interference in US elections," Putin's spokesman, Dmitry Peskov, was quoted by Russian news agencies as telling reporters. "Putin categorically rejected even the hypothetical possibility that Russia could have in some way interfered in the U.S. electoral process."
Earlier Saturday, the Kremlin issued a statement saying the leaders had reached agreement on a number of principles for the future of civil war-torn Syria now that the Islamic State group has largely been pushed out. Among the agreements' key points, according to the Russians, were an affirmation of de-escalation zones, a system to prevent dangerous incidents between American and Russian forces, and a commitment to a peaceful solution governed by a Geneva peace process.
The Kremlin quickly promoted the agreement as the White House stayed silent. Trump told reporters that the deal was reached "very quickly" and that it would save "tremendous numbers of lives." And he praised his relationship with Putin, saying the two "seem to have a very good feeling for each other and a good relationship, considering we don't know each other well."
Video from the summit in the seaside city of Danang, Vietnam, showed Trump and Putin shaking hands and chatting, including during the world leaders' traditional group photo. The two walked together down a path to the photo site, conversing amiably, with Trump punctuating his thoughts with hand gestures and Putin smiling.
Journalists travelling with Trump were not granted access to any of the APEC events he participated in Saturday.
Trump's visit to Hanoi began with a state dinner during which he showered the country with praise, saying it has "truly become one of the great miracles of the world." It comes as he prepares for his last stop: the Philippines.
Associated Press writers Laurie Kellman, Darlene Superville, Josh Lederman and Ken Thomas in Washington contributed to this report.