President Trump stands to be outspent by tens of millions of dollars on television and radio in the campaign’s final weeks as Democratic nominee Joe Biden puts his significant fundraising advantage to work in key battleground states.

Biden and aligned Democratic groups were on track to invest $169.7 million in television and radio advertising during the final 21 days of the presidential campaign. Trump and allied Republican groups were set to spend nearly $70 million less, with reserved media buys of $101.4 million over the same period.