Image source, Getty- Published25 minutes ago
The US midterms campaign is set to be the most expensive on record - with the total cost projected to reach nearly $12bn (£9bn), according to Open Secrets, an independent organisation that tracks campaign finance.
Most of the spending is driven by outside political groups - known as Super Political Action Committees (Super Pacs) - pouring large sums of money into some key races ahead of election day on 3 November.
The top individual donor is billionaire businessman Elon Musk, who has spent almost half a billion dollars backing Republican candidates, particularly in Texas where many of his companies are based.
