Washington — Republican lawmakers who went to Russia seeking a thaw in relations received an icy reception from Democrats and Kremlin watchers for spending the Fourth of July in a country that interfered in the U.S. presidential election and continues to deny it.

“Cannot believe GOP, once the party that stood strong against Soviets & only a decade ago sought to democratize the Middle East, is now surrendering so foolishly to (Russian President Vladimir) Putin and the Kremlin’s kleptocracy — only two years after Russia interfered in U.S. election,” tweeted Clint Watts, an information warfare specialist at the Foreign Policy Research Institute and frequent featured expert before congressional panels examining Russian influence operations.

“Russians wooing with a shopworn song — repugnant as nails on a blackboard,” Sen. Richard Blumenthal, D-Conn., said in a tweet in response to the delegation’s trip. “They are enemies and adversaries, attacking us.”

Sen. Richard Shelby, R-Ala., led the eight-member delegation on a multiday tour of St. Petersburg and Moscow, a trip that included meetings with Russia’s foreign minister and parliamentarians. It did not include a session that senators had been hoping for: a meeting with Putin, whom President Donald Trump is scheduled to meet at a summit this month.

Members of the delegation set off on their trip late last week promising to be tough with Russian officials ahead of the president’s visit, especially on matters of election interference. But they struck a conciliatory tone once there: The point of their visit, Shelby stressed to the Duma leader, was to “strive for a better relationship” with Moscow, not “accuse Russia of this or that.”

It played well in Moscow, but not on the home front.

“Politicians celebrate Independence Day in many ways. Some march in a parade. Some attend a barbecue or watch fireworks,” tweeted Richard Painter, an ethics lawyer in President George W. Bush’s administration who is running for the Senate in Minnesota as a Democrat. “But others must travel further to meet with their most important constituents.”

The senators who posted Fourth of July messages on social media while still in Moscow took some of the sharpest criticism, some of which highlighted that while they met with Kremlin-connected officials, Britain discovered that two of its citizens had been poisoned by a suspected Russian nerve agent, the same substance that injured a former Russian spy and his daughter in England in March.

Others pointed out that while the delegation was in Russia, the Senate Intelligence Committee released a report finding Russia had interfered in the 2016 presidential election with a clear preference for helping Trump defeat former secretary of state Hillary Clinton. Only one of the delegation participants, Sen. John Neely Kennedy, R-La., sits on a congressional panel that has looked into the Russia probe.

On Fox News, Sen. Steve Daines, R-Mont., said the Russia trip had been “productive.”

“We sent a very strong message and a direct message to the Russian government,” he said, ticking off four items he said they pressed while there: Don’t interfere in U.S. elections, respect the sovereignty of Ukraine, work with us toward peace in Syria, and uphold obligations under nuclear arms treaties.