WASHINGTON >> The U.S. ambassador to the United Nations says there’s no question Russia was involved in the U.S. presidential election and insists President Donald Trump would fully support strong action against the Kremlin once investigations are complete.

Speaking in television interviews broadcast Sunday, Nikki Haley contended there is no contradiction between her tough stance and Trump’s repeated public statements seeking to minimize Russia’s role. She said Trump “has not once” told her to stop “beating up on Russia.”

She joins Defense Secretary James Mattis as Trump administration officials who have forcefully called out Russia for its actions during the 2016 U.S. campaign.

“We don’t want any country involved in our elections, ever,” Haley said. “We need to be very strong on that.”

Russian President Vladimir Putin has denied his country meddled in the 2016 contest between Trump and Democrat Hillary Clinton. While Trump himself has said he believes Russian operatives hacked Democratic Party emails during the election, he has repeatedly lambasted as “fake news” any suggestion that he or his staff had connections to Russia.

Trump continued his attacks over the weekend, tweeting: “It is the same Fake News Media that said there is ‘no path to victory for Trump’ that is now pushing the phony Russia story. A total scam!”

He added on Sunday: “The real story turns out to be SURVEILLANCE and LEAKING! Find the leakers.”

U.S. intelligence agencies report that Russia tried to help Trump’s campaign effort. The FBI as well as congressional committees are investigating whether the Russian government coordinated with Trump associates during the campaign. The White House is also trying to quell a firestorm over its behind-the-scenes role in helping the Republican chairman of the House intelligence committee, Rep. Devin Nunes, view secret intelligence reports that he says pointed to inappropriate leaking.

Rep. Adam Schiff, the top Democrat on the panel, went to the White House on Friday to view materials that he said were “precisely the same.” He declined on Sunday to describe the contents, but criticized the unorthodox disclosure to Nunes, suggesting that the material was more likely an “effort to deflect attention” and “create a cloud through which the public cannot see.”

“Whenever they see the president use the word ‘fake,’ it should set off alarm bells,” Schiff said. “I think that’s really what going on here.”

Trump as president persuaded Haley to leave the governorship of South Carolina to represent the U.S. at the United Nations. She said she was “beating up on Russia” over issues such as its actions in Crimea and its dispute with Ukraine.

When asked if she believes Trump should publicly take a harder Russia stance, she said: “Of course, he’s got a lot of things he’s doing.”

“There’s no love or anything going on with Russia right now,” Haley said. “They get that we’re getting our strength back, that we’re getting our voice back and that we’re starting to lead again, and, honestly, at the United Nations, that’s the No. 1 comment I get is that they’re just so happy to see the United States lead again.”

Sen. John McCain, R-Ariz., who chairs the Armed Services Committee, said it was indisputable that Russia attempted to influence the U.S. election, reiterating his call for a special select committee.

But Senate Majority Leader Mitch McConnell said he didn’t think another review was necessary, citing the bipartisan work from the Senate Intelligence Committee.

“I think they clearly laid out that they’re going wherever the facts take them,” McConnell said, referring to Republican chairman Richard Burr of North Carolina and Mark Warner of Virginia, the top Democrat on the panel. “We don’t need yet another investigation. We know the FBI is looking at it from their perspective.”

Dmitry Peskov, Putin’s press secretary, said Russia was not worried about what any U.S. investigation might reveal. “We insist that any blaming that Russia could have been interfering in domestic affairs of the United States is slander,” he said.

Haley, Peskov and McCain appeared on ABC’s “This Week,” Haley also was on CBS’ “Face the Nation,” Schiff spoke on CNN’s “State of the Union,” and McConnell appeared on “Fox News Sunday” and NBC’s “Meet The Press.”