Sessions joins Sens. John McCainJohn Sidney McCainTrump says he's 'very happy' some GOP senators have 'gone on to greener pastures' The Hill's Morning Report - Democratic debates: Miami nice or spice? Trump pick brings scrutiny to 'revolving door' between Pentagon, industry MORE (R-Ariz.) and Lindsey GrahamLindsey Olin GrahamBooker calls for hearings on reports of ICE using solitary confinement GOP lays debate trap for 2020 Democrats Overnight Defense: Trump says he doesn't need exit strategy with Iran | McConnell open to vote on Iran war authorization | Senate panel advances bill to restrict emergency arms sales MORE (R-S.C.) in opposing the sequestration of defense funding. On Monday, those two senators released a statement that said the cuts "cannot be allowed to occur."

McCain in particular has argued that the required cuts would come on top of the $350 billion in cuts that Defense already faces, and nearly $200 billion in other reductions that former Defense Secretary Robert Gates imposed.

Sessions said that the Defense Department makes up about one-sixth of the federal government, and therefore should not have to shoulder half of the $1.2 trillion sequester. McCain and Graham said they are looking for ways around these cuts, and House Armed Services Committee Chairman Buck McKeon (R-Calif.) said he is preparing a bill for that purpose.