The Democratic leader still faces skeptics in his ranks and hostility from some activists, but aides say he has enough commitments of support to be elected majority leader.
Senator Chuck Schumer, Democrat of New York, and his political team engaged in a $550 million push to put more Senate seats in play and increase their chances of regaining the majority.
As political fights over artificial intelligence accelerate, there is now a super PAC aligned with the data center industry. Its first bet is on Ms. Graham, a Republican in an unexpectedly tight race.
Senator Darline Graham of South Carolina has been friendlier toward the data center industry than her Democratic opponent, trying to walk a line between backing the centers’ development as a national security necessity while stressing the need for community involvement.
Greg Brockman, OpenAI’s president and co-founder, said internally that the super PAC, Leading the Future, had become a “distraction” for the A.I. company.