Donald Trump's attack dog Corey Lewandowski made a bold claim about the country's new president earlier this week.

'Look, Donald Trump in the first four weeks of his presidency has done more to help this county than I think Barack Obama has done in the last four years,' Trump's former campaign manager said.

Lewandowski, no longer working for CNN, sat down with Fox News Channel's Sean Hannity earlier this week and touted Trump's Carrier and SoftBank deals, which the president-elect is taking credit for.

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Donald Trump's original campaign manager Corey Lewandowski said on Hannity this week that Trump has done more since the election than President Obama did in four years

Sean Hannity (left) welcomed Corey Lewandowski (right) back to Fox News, as Lewandowski was employed by CNN after his stint with the Trump campaign ended

He told the Fox News host that he knew it was a brazen claim.

'But what we see is a commitment to our military again, a commitment to our businesses to reduce the amount of government regulations so that they can continue to and grow our economy,' Lewandowski began.

'Not at 1 percent, not at 2 percent, but at 4 percent, 5 percent, lower the corporate tax rate so that our country can be competitive in the global marketplace,' Lewandowski said.

'That's what we have – look, his presidency is summed up in two words, America first,' the former aide pointed out. 'I love it!'

The former top Trump aide touted the Carrier deal and said it made for a 'great Christmas.'

'Which you can say again, "Merry Christmas," because Donald Trump is now the president,' he added. 'You can say it again.'

'It's OK to say. It's not a pejorative word anymore,' Lewandowski added.

For years, Fox News reporters have covered a 'War on Christmas,' suggesting that political correctness has led to a cultural transition from 'Merry Christmas' to 'Happy Holidays.'

Lewandowski made it clear that Trump is solidly in the 'Merry Christmas' camp.

He referenced this twice in talking to Hannity.

Lewandowski, who was fired from the Trump campaign in June, had been quickly hired by CNN to be a political commentator for the rest of the cycle.

He quit that job on November 11 after his old boss won the White House and has been spotted at Trump Tower since.

Hannity relished the fact that Lewandowski was back on the right-leaning news network.

'We going to – by the way, Corey, isn't this a much better experience than CNN?' Hannity asked. 'You've got to admit it's much better.'

'Well, the good news – you know, look, it's not eight on one, which I appreciate,' the former campaign manager answered, noting how a majority of CNN's talking heads didn't support Trump.

Hannity publicly supported Trump by the end of the campaign.

Besides already having a more successful record than President Obama, Lewandowski also praised Trump's 'thank you tour' for being 'so smart.'

'Not just going out and seeing the people and reminding them that the power is not in Washington but is out in the states, but saying thank you for the support that they gave Donald Trump in this election,' he remarked.

'What he said was, we're going to unite everybody,' Lewandowski added, noting how 'powerful' Trump's speech was that the president-elect delivered in North Carolina last night.