WATCH: Donald Trump's first campaign ad hits out at Hillary Clinton's "rigged system"

The Republican candidate's opening advertisement focuses on crime and open borders

WATCH: Donald Trump's first campaign ad hits out at Hillary Clinton's "rigged system"

Republican US presidential candidate Donald Trump reacts after delivering a campaign speech in Charlotte, North Carolina | Image: Gerald Herbert / AP/Press Association Images

Donald Trump has hit out at the "rigged system" designed by Hillary Clinton which has been a part of his discourse in recent weeks. 

This is the first such advertisement from Trump, who was being outspent by the Clinton campaign by a huge margin according to figures released earlier this month.

Clinton's campaign spent $52 million on advertising, while other groups and Super PACs backing the Democratic candidate spent a further $37 million. Meanwhile, Trump groups had spent just over $8 million, while the campaign itself hadn't invested any money.

That seemed to have translated to success in the polls for Clinton, with traditional Republican states like Georgia falling into "battleground" territory in polls released on Sunday of last week.

Trump's first ad concentrates on many of the issues that he has hit on throughout his campaign, including open borders, crime and safety.

The Trump campaign has had a busy and turbulent 24 hours, after it was announced that campaign manager Paul Mannafort had resigned in the wake of a shake up in the campaign, the second in less than two months. 

The head of conservative news website Breitbart News, Steve Bannon, was this week appointed campaign chief executive officer in a move many have seen as a "let Trump be Trump" strategy, rather than a more moderate stance or "pivot," which some had claimed he would make in the run up to November's general election. 

The ad certainly seems to be following along those lines, doubling down on the messages that concentrated on during the primary process and which won him the GOP's nomination.

However, Hillary Clinton still holds a 6-percentage-point lead over her Republican rival in the latest Reuters/Ipsos poll.