PRESIDENT Donald Trump has implored his supporters to vote today, saying the media will treat the mid-term results as a referendum on his presidency.

Some Democrat supporters admitted they were haunted by the spectre of 2016 when Trump’s triumph confounded the pundits and opinion polls which predicted a Hillary Clinton victory.

READ MORE: Midterms D-Day in most secure US election ever

Three TV channels, including Trump-backing Fox News, have stopped running a Trump campaign ad, saying it is racist.

“Even though I’m not on the ballot, in a certain way I am on the ballot,” Trump said during a tele-town hall meeting organised by his re-election campaign on Monday to encourage Republicans to get out and vote.

“The press is very much considering it a referendum on me and us as a movement.”

The comments came as Trump readied for a final three-state rally blitz as he tries to keep Congress in Republican control and stave off losses that could profoundly change his presidency.

Trump’s closing argument has largely focused on fear, warning with out evidence that a Democratic takeover would throw the country into chaos, spurring an influx of illegal immigration and a wave of crime.

And yesterday, he made the case that if Democrats win, they will roll back everything he has tried to accomplish. “It’s all fragile,” he said.

Trump held his final three get-out-the-vote rallies last night in Ohio, Indiana and Missouri, a day after stops in Tennessee and Georgia, where he sought to motivate complacent Republicans to the polls by stoking fears about Democratic control.

“You want to see Georgia prosperity end?” Trump told Macon, Georgia. “Vote for the Democrat.”

Trump’s remarks included ominous references to the “Antifa” far-left militant groups and a migrant caravan heading toward the US-Mexico border he has called an “invasion”.

There are indications a “blue wave” may help Democrats seize control of at least one chamber of Congress.

But nothing is certain. “I don’t think there’s a Democrat in this country that doesn’t have a little angst left over from 2016 deep down,” said Stephanie Schriock, president of Emily’s List, which spent nearly $60 million, to support Democratic women this campaign season.

All 435 seats in the US House are up for re-election, and 35 Senate seats are in play, as are almost 40 governorships and the balance of power in virtually every state legislature.

The key race in Georgia for the state’s governorship has attracted visits from Trump, his vice-president Mike Pence and, for the Democrats, former president Barack Obama and talk show host Oprah Winfrey.

Republican Brian Kemp faces Democrat Stacey Abrams in a tight race. Abrams would be the first black woman elected governor in any US state.

Meanwhile NBC and Trump-supporting Fox News Channel have both said they will stop airing Trump’s campaign ad featuring an immigrant convicted of murder. CNN had already rejected the same ad, declaring it racist.