Some reckon Trump's losing his marbles a bit - and this speech might help their case

The anticipation had been that it would be a speech of significance.

The White House had announced two days earlier that the president was to deliver an evening address to the nation.

Traditionally the 9pm slot, interrupting the prime-time schedule on all the networks, is reserved for big news - usually international in nature.

Speculation had grown through the day that he may use the speech to address the prospect of US military action in Venezuela.

Read more: Trump has told us why he's going after Venezuela

Instead, Trump took the big audience moment to make what was essentially a campaign speech but delivered at speed and combative in tone.

He blamed former president Joe Biden for the economy he inherited, on the "brink of ruin", adding that he is "bringing those high prices down and bringing them down very fast".

Speaking from the White House Diplomatic Reception Room, he said: "Our country is back, stronger than ever before. We're poised for an economic boom the likes of which the nation has never seen.

"It's not done yet, but boy are we making progress, nobody can believe what's going on."

He was speaking against an increasingly challenging backdrop politically and economically.

Petrol prices are down, but the broad cost of living continues to rise, and people do not seem to be feeling the economic boom he claims to be unleashing.

The unemployment rate rose to 4.6% in November, the highest it's been for five years.

The only real announcement in his speech was a bonus for members of the military.

He said that the government would send checks of $1,776 to all service members. The idea, he said, had only been finalised "about 30 minutes ago", and the cheques were already in the post.

A fascinating speech - in tone if not substance

It was a very notable presidential address, not for what he announced because there was no big reveal. It was the tone which fascinated me.

The 9pm live address was his framing of his greatest hits from the past year, but delivered by an angry and frustrated man.

"Why are my polling numbers not better?" was the vibe he gave off.

"Why is the economy not doing better? Why are you - the voters - not feeling better off?"

Not actual quotes, but the clear subtext.

Read more: White House plaques attack ex-presidents

It is his low polling, rising unemployment, the cost of living and inflation challenges which prompted this address.

Had he come out and, off script, with empathy, said - "look, I get it… it's taking time for you to feel my economic success…." - if he'd said all that with meaning, I think that would have landed in a more sympathetic way.

Instead - reading, unusually, off a script, he came across as a very frustrated president and extremely defensive.

Here's the worry for Team Trump. So often out and about with voters, I hear people say: "Oh I don't really like his style, his language, his divisiveness. But he's a businessman. He knows how to run the country and the economy."

If he loses those people, he's in real trouble. That's especially true when combined with suggestions he is losing some in his base too - just listen to his fan-turned-foe, MAGA stalwart, Marjorie Taylor Green.

One last thought. There are observers who think Trump is kind of unhinged; losing his marbles a bit. The slightly strange tone of this speech will be evidence for them, for sure.

(c) Sky News 2025: Some reckon Trump's losing his marbles a bit - and this speech might help their case