Mark Kelly

Senator Mark Kelly of Arizona is set to report a political treasury of nearly $25 million across his federal accounts, emerging as one of the Democratic Party’s top fund-raisers and donors in recent months as he considers a potential presidential run.

In addition to that war chest, Mr. Kelly’s political team said he had now raised and given away a combined $10 million to other Democratic candidates and party committees ahead of the 2026 elections. That included $2 million to the Democratic National Committee and $3.5 million to the Democratic Senatorial Campaign Committee.

“We can win back the House and the Senate, but it’s not going to be easy and it takes resources, and I want to make sure that I do everything I can to help get people across the finish line,” Mr. Kelly said in an interview. He provided his fund-raising figures to The New York Times before a federal filing deadline on Wednesday.

Mr. Kelly, a former astronaut and the husband of former Representative Gabby Giffords of Arizona, has long been a strong fund-raiser, winning election to the Senate in both 2020 and 2022 in a battleground state. But his fund-raising was turbocharged after President Trump in November accused him and five other Democratic lawmakers of “sedition” after they made a video telling active service members they could ignore illegal orders.