Hillary Clinton is urging Americans to halt Donald Trump's momentum by voting for Democrats in the mid-term elections.

Clinton implored her supporters send a clear message to her 2016 opponent by rejecting 'radicalism, bigotry, and corruption' at the ballot box today.

'For the past two years, we've watched this administration attack and undermine our democratic institutions and values. Today, we say enough,' she said.

A former aide to Clinton meanwhile warned Trump 'the entire nation will render judgement on you' in the election that Democrats hope will provide vindication for their previous loss.

Hillary Clinton is urging Americans to halt Donald Trump's momentum by voting for Democrats in the mid-term elections

Clinton implored her supporters send a clear message to her 2016 opponent by rejecting 'radicalism, bigotry, and corruption' at the ballot box today

Clinton beat Trump by millions of votes in 2016 - but lost out on the presidency based on the Electoral College count

She mocked Trump's claim that he could end birthright citizenship in another tweet

Clinton talks with campaign advisor Philippe Reines (R) aboard her campaign plane at the Ft Lauderdale-Hollywood International Airport on November 2, 2016 - six days before the fateful election that elevated Trump to power

The aide who played the Republican in Clinton's mock debates, Philippe Reines, bluntly told Trump in a tweet: 'You’re f***ed.'

Clinton beat Trump by millions of votes in 2016 - but lost out on the presidency based on the Electoral College count.

He almost never fails to bring up the walloping at his campaign rallies, of which this cycle he's had a plethora.

Trump often assaults Clinton, a former first lady, senator and secretary of state, as 'Crooked' at his events to the tune of his audience shouting, 'lock her up!'

At his Cape Girardeau rally on Monday night, special guest Rush Limbaugh claimed that Clinton 'rigged' the election that Trump won and 'colluded' with Russia.

'The Democrats haven’t even accepted that they lost the election in 2016. That’s what this was all about,' he said of claims that it was the Trump campaign that inappropriately took help in the race from the foreign government.

Reines had told Trump to give his attacks on Clinton, and former President Barack Obama, a rest earlier the day.

'It’s not you vs Obama. It’s not you vs Hillary. It’s you and your accidental two years vs America’s first 240 years. It’s the first time since Nov 8 2016 the entire nation will render judgement on you,' he tweeted. 'You’re f***ed.'

He said in a National Review podcast on Monday that he truly believes that Clinton would have won in 2016 if Russia had not interfered in the presidential election to boost Trump.

He worried in the same podcast that Democrats wouldn't field a candidate in 2020 who can oust the sitting president. He said that 'moments in history like this tend to not get resolved' and that Trump is likely to win again.

'I mean the one thing that Secretary Clinton has always said, whether it's about her or just in general, is a campaign is between two people. And while that sound obvious, right now when people talk about Donald Trump, it's really Trump or not Trump.

'I always think of it this way, that if the election were held tomorrow, stick in a name, would Trump win, and I have a hard time thinking of --- you know,like I think Tom Hanks would win, I think The Rock would win. I have a hard time seeing how a lot of the people who are running would win,' Reines said.

He went on to say in the podcast that Trump 'is a freak of nature and it doesn't matter if he's dumb or not' because net-for-net he believes that Trump won't be a one-termer.

Reines told Trump to give his attacks on Clinton, and former President Barack Obama, a rest on Monday

At Trump's final rally on the 2018 election Monday night in Missouri, Limbaugh likewise said: 'Other than Donald Trump. There is nobody. No one. And they are jealous. They are envious. This isn’t supposed to happen.'

In October, Reines floated Clinton as a possible candidate, suggesting she could seek the Oval Office and the Democratic Party nomination for a third consecutive time.

Clinton then told Recode's Kara Swisher that she doesn't want to go through the grueling process of running a national campaign again.

She didn't rule the possibility out, however, saying at a conference, she'd 'like to be president' and 'hopefully, when we have a Democrat in the Oval Office in January of 2021.'

'I'm not even going to even think about it 'til we get through this November 6 election about what's going to happen after that,' Clinton said, leaving the door open.

An Axios poll released on Sunday found that Clinton would beat Trump in the popular vote again, if she runs in 2020. It was Oprah Winfrey and Michelle Obama, though, who had the best hypothetical chance.