Senate Majority Leader Mitch McConnell is calling in the cavalry ahead of 2016, with his close confidant launching a super PAC to provide reinforcements for Republican incumbents who face incoming attacks from Democrats and GOP primary challengers.

Senate Leadership Fund opened this month under executive chairman Steven Law, a former aide to the Kentucky Republican who maintains his role as president and CEO of American Crossroads, considered the premier GOP-aligned super PAC. McConnell isn’t legally permitted to coordinate with SLF, but the new Senate majority leader can promote the organization to prospective donors and signal where — and how — he’d like the group to operate. Expect Law to pay attention.