Joe Biden raised a record $ 26 million for his campaign after he nominated Kamala Harris for the post of US Vice President, the Associated Press reported.

This is expected to mark the start of a fruitful fundraising campaign in the final phase before election day.

Democrats are close to catching up if not overtaking incumbent Donald Trump's fundraising campaign, which raised $ 300 million in July.

The key role in this was assigned to Kamala Harris, Associated Press added.

She joined Biden in Delaware in her first joint fundraiser as political associates.