But Donald Trump has outsourced the vast majority of this behemoth, and critical mission to – you guessed it – the Republican National Committee. In attacking them then, he has bitten the hand that feeds him.

The television show host with no past political experience barrelled his way to fame on a string of flamboyant appearances on prime-time television.

But he was backed by very little. Mrs Clinton hired veritable army of communications officers to hone her message.

Mr Trump for a long time relied on Hope Hicks, a glamorous 27 year-old who had previously worked as a PR agent helping Mr Trump’s daughter, Ivanka, with her fashion line.

So when Mr Trump became the improbable Republican nominee, his party stepped in to do the heavy lifting. In May the RNC created the Trump Victory Committee, an organisation that, as Reince Priebus, the party chairman, said was “committed to raising the additional resources that will make the difference in producing victory this November.”