The restructuring reportedly will create five new organizations with the agency focused on artificial intelligence, China, cybersecurity, combat support and global intelligence.
Trump made the remarks after publicly rejecting a slowdown in AI expansion. He has previously backed continued construction of data centers and warned that China winning the AI race would pose a greater risk.
Trump made the initial promise during his speech at the Republican midterm convention in Dallas, Texas. On Monday, he addressed criticism of the plan from the Democrats and insisted he planned to follow through on the pledge.
Collins is fighting a tough reelection campaign against former Maine Senate President Troy Jackson in what is expected to be one of the most competitive races of the cycle.