US Republican Presidential Candidate Donald Trump addresses supporters at the Gallogly Events Centre in Colorado Springs, Colorado, on Friday. Picture: AFP.

The Republican presidential candidate took to Twitter to question his Democratic rival’s judgment.

But the social media post was so badly spelled that the Twittersphere has responded by questioning Mr Trump’s attention to detail and ability to string a sentence together.

The gaffe came as both candidates gear up to receive national security briefings, possibly as early as next week.

With Ms Clinton and Mr Trump now confirmed as their respective party candidates, they will be given access to top secret information about the country’s military and security situation and foreign policy efforts.

The meetings are a scaled-down version of the President’s daily intelligence and security briefings.

In a Tweet posted on Friday, US time, Mr Trump suggested Ms Clinton should be denied the briefings.

“Hillary Clinton should not be given national security briefings in that she is a lose cannon with extraordinarily bad judgment & insticts.”

Mr Trump did not elaborate on what he meant by “bad judgment” and “instincts”.

But it was the terrible composition of the post which raised eyebrows. For a start, Mr Trump misspelled ‘instincts’ while he used the word ‘lose’ rather than ‘loose’.

Many on social media users were quick to point out the errors, questioning whether someone with such scant attention to detail would be fit to lead the US.

While the Tweet may not have been Mr Trump’s most elegant, it was penned in response to earlier comments by senior Democrats casting doubt on whether he should be allowed access to the highly sensitive security information.

Senate Minority Leader Harry Reid has suggested that Mr Trump should be given “fake intelligence briefings … because you can’t trust him.”

NBC News has reported that Democratic politician David Cicilline, of Rhode Island, sent a letter to President Barack Obama which said Trump, “is unfit to receive sensitive intelligence” and asks that he “withhold” the national security briefings from the candidate.

While 150,000 people have signed an online poll demanding the briefings to be denied to Mr Trump because he, “just asked Russia to spy on the United States”, a reference to the businessman and reality TV star’s encouragement of Russia to hack into Ms Clinton’s email account.

He later said the remark was meant to be “sarcastic”.

Republican presidential candidate Donald Trump speaks during a campaign rally at Wings Over the Rockies Air and Space Museum in Denver on Friday. Picture: AP.Source:AP

Indeed, the briefings are by no means a given and there is no legal obligation to grant them to Presidential candidates. Mr Obama could deny them to Mr Trump, Ms Clinton or both.

Rather, they are a courtesy given to those vying to make it to the White House to give them some insight of the US’ current security situation and prepare them for office.

They began in 1952 when President Harry Truman allowed his staff to brief Republican candidate Dwight D. Eisenhower.

However, President Obama has signalled he has no intention of denying the briefings to either candidate.

On Thursday, White House spokesman Josh Earnest said that Mr Obama is going to stick with “tradition that’s been in place for more than 60 years,” reported NBC.

Exactly, how much and how detailed the information the candidates are given is up to the discretion of the current administration.

And whatever briefing Mr Trump does get, it’s likely the spelling will be impeccable.