Joe Biden's campaign has shattered fundraising records while widening a financial lead over President Donald Trump reelection campaign in the final weeks leading up to the Nov. 3 election. 

The Biden campaign revealed Tuesday that it raised $383 million in September, up from the $364.5 million in August. Biden announced the cash haul on Twitter and thanked donors for their contributions.

"To every person who chipped in a few dollars last month — thank you. Because of your support, we raised an astounding $383 million. I'm incredibly humbled," he tweeted.

A video from Biden noted that it was more money than he ever raised in his political career.

The total included contributions from 1.1 million new donors, the campaign reported, bringing the overall number of contributors to 5.5 million.

Biden's campaign manager Jen O'Malley Dillon said that $203 million of the $383 million raised came from online donations.

The Biden campaign had several major fundraising days including the night of the first debate on Sept. 29, when it raised about $10 million in over three hours. It also brought in another $21.5 million the day after the first presidential debate.

Trump's campaign has not revealed its September earnings. The reelection campaign raised about $210 million in August but fell short of Biden by about $150 million.

Biden continues to outspend Trump on TV ads, a trend that's has stayed stable since the end of July. 

According to tracking by Kantar/CMAG, the Biden camp is spending more than $24 million in 16 states this week, while Trump's camp is spending more than $17 million on TV ads in 11 states. Earlier this week, Kantar/CMAG tracking revealed Trump's campaign cut more than $10 million in TV advertisements in nine states.

Meanwhile, The Lincoln Project, an anti-Trump super PAC, has seen a windfall from both billionaires and small donors. According to recent records from the Federal Election Commission, the group has raised $39 million from July through September.

Democrats have also seen big fundraising boosts for several key Senate races. Large fundraising hauls have come for Jaime Harrison of South Carolina, M.J. Hegar of Texas, Mike Espy of Mississippi, and Amy McGrath of Kentucky.