Once in the White House, President Donald Trump won't cut back his tweeting, said incoming Press Secretary Sean Spicer.

'You know what, the fact of the matter is that, when he tweets, he gets results,' Spicer told ABC's Jonathan Karl today on This Week.

Karl was pointing out how Trump might expand the country's nuclear capabilities, switching directions from his predecessors, an announcement the president-elect dashed off in a tweet the Thursday before Christmas.

Pointing to the New York Times story on the matter, the ABC newsman said what struck him was the article's subhead, which pointed out that the policy shift came from a 'statement on Twitter.'

'Is that what we’re going to see?' Karl asked Spicer, who had previously said Trump's use of Twitter will be a 'really exciting part' of the Republican's presidency.

'Sure. Why not?' the incoming press secretary answered.

'You know, with all due respect, I think it freaks the mainstream media out that he has this following of over 45-plus million people that follow him on social media, that he can have a direct conversation,' Spicer said.

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Incoming White House Press Secretary Sean Spicer vouched for President-elect Donald Trump's tweeting, suggesting it was getting the Republican politician results

Sean Spicer (left) , talking to ABC's Jonathan Karl (right), said he believed Trump's use of Twitter 'freaks the mainstream media out'

Spicer, who served as the Republican National Committee's communications director before jumping to the Trump team then warned reporters that 'business as usual is over,' also noting that 'there's a new sheriff in town.'

The spokesman added that Americans should expect to see Trump using Twitter regularly, as he did throughout the campaign and the transition, despite the fact that the president-elect said on 60 Minutes that he planned to tweet less upon entering the White House.

Since Friday alone, the president-elect has gotten attention for complimenting Russian President Vladimir Putin on the medium, in the aftermath of President Obama announcing new sanctions against Russia for the country's involvement in election year hacking.

'Great move on delay (by V. Putin) - I always knew he was very smart!' Trump tweeted, to the dismay of most Democrats and some members of his own party.

Trump's New Year's tweet was also an eyebrow-raiser.

'Happy New Year to all, including to my many enemies and those who have fought me and lost so badly they don't know what to do. Love!' the president-elect dashed off Saturday morning.

Spicer again backed Trump's use of Twitter.

'So whether it’s Twitter, holding a news conference, picking up the phone, having a meeting, he is going to make sure that he continues to fight for the American people every single day,' Spicer said.

Spicer said the White House would still have regular White House press briefings, though noted that the incoming administration was still pondering what those would look like.

Currently, the press secretary briefs the press nearly every weekday and those briefings are livestreamed and televised.

'You know some of them will be on camera; some of them will be off. But absolutely,' Spicer said of briefings coming out of a Trump White House.

He also said 'absolutely' when Karl asked if a President Trump would hold regular press conferences.

Trump hasn't held a press conference since July 27, 2016, when he was merely a presidential candidate.

In the past, president-elects have chosen to take questions of the press shortly after their election.

With Trump's swearing-in just 19 days away, Spicer also previewed the administration's plans going forward from day No. 1.

'It's going to be not one big thing; it’s going to be many big things,' Spicer said.

The incoming press secretary said that Trump would sign a series of executive orders, which would cut back regulations that have hampered job growth.

Trump would immediately be forward-looking as well, Spicer promised.

'He's going to bring a new brand to Washington,' Spicer said of his political outsider boss, mentioning Trump's plan to implement a lobbying ban, which would be for five years if individuals planned to lobby the American government or a lifetime ban for lobbying a foreign government.