​A political group that supports Donald Trump spent more than $40 million on legal costs in the first half of 2023 to defend the former president, his advisers and others, sources familiar with a filing detailing the costs confirmed to ABC News.

That number spent by the Save America leadership PAC, Trump's main fundraising arm, was first reported by The Washington Post.

The financial filing is expected to be released Monday.

The mounting costs come as Trump faces mounting legal troubles, including a superseding indictment handed up from a federal grand jury via special counsel Jack Smith's investigation into Trump's allegedly improper retention of classified documents after leaving office.