WASHINGTON — President Trump’s cautious distance from Hong Kong’s pro-democracy movement has left him politically isolated from both parties in Congress, the State Department, European allies and his most hawkish advisers at the White House.

Despite ringing declarations of support for the protesters from leading Democrats and Republicans as well as European officials, Mr. Trump has shown little sympathy for the mass demonstrations against China’s encroaching political influence on the former British colony. And in his almost-singular focus on his showdown with Beijing over trade and tariffs, Mr. Trump is ignoring the view of his conservative advisers, who believe that China’s authoritarian model threatens American interests worldwide.

Speaking to reporters as he headed to a campaign event on Thursday, Mr. Trump was complimentary toward China’s president, Xi Jinping. “I really have a lot of confidence in President Xi,” Mr. Trump said, predicting that if the Chinese leader met with protest leaders, “things could be worked out pretty easily.” Mr. Trump offered no words of support for the goals of the protesters, which include preventing China’s repressive political system from subsuming Hong Kong’s open society.

Two senior administration officials said top foreign policy advisers to Mr. Trump have pressed him to take a more forceful public stand on Hong Kong as the pro-democracy protests have escalated, along with police violence against them. One tough internal critic of China’s government is Mr. Trump’s national security adviser, John R. Bolton, who in an interview on Wednesday with Voice of America used far stronger language than Mr. Trump has about the protests.