Even their critics admit it, the Democrats have been having a flawless national convention. No one has been berating an empty chair, instead their steely focus and resolve have been remarkable.

Featuring a formidable and deeply personal speech by Michelle Obama that was described as 'masterful' by Fox News, and a brilliantly detailed endorsement of the presidents policies by Bill Clinton last night, the GOP must be disheartened to see the obvious public enthusiasm and media coverage the DNC is generating.

In particular Paul Ryan came in for a mauling from the big dog last night: 'So - so President Obama and the Democrats didn’t weaken Medicare; they strengthened Medicare. Now, when Congressman Ryan looked into that TV camera and attacked President Obama’s Medicare savings as, quote, the biggest, coldest power play, I didn’t know whether to laugh or cry - because that $716 billion is exactly, to the dollar, the same amount of Medicare savings that he has in his own budget. You got to get one thing — it takes some brass to attack a guy for doing what you did.'

That moment prompted laughter and a huge round of applause.

But perhaps most worrying of all for Mitt Romney's chances is this morning's breaking news that ADP employer services have announced the US has added 201,000 new jobs in August. That's a much stronger figure than the 140,000 consensus and it's up from the 173,000 added in July.

As though anticipating those inspiring numbers last night Clinton concluded: 'Listen to me, now. No president - no president, not me, not any of my predecessors, no one could have fully repaired all the damage that he found in just four years. Now - but  - he has - he has laid the foundation for a new, modern, successful economy of shared prosperity. And if you will renew the president’s contract, you will feel it. You will feel it.'

Right on cue the best employment statistics of the year to date are released.

As Clinton said himself last night: 'Now, people ask me all the time how we got four surplus budgets in a row. What new ideas did we bring to Washington? I always give a one-word answer: Arithmetic.'

Obama's numbers are adding up to a re-election.