Mitch McConnell is in a bind.

The Senate majority leader opposes changes to the National Security Agency (NSA), but his proposal to reauthorize surveillance powers under the Patriot Act “cleanly” is unlikely to pass the upper chamber.

After the House increased the pressure Wednesday with an overwhelming vote in favor of an NSA reform bill, McConnell (R-Ky.) began to look for an escape hatch, filing legislation Thursday evening that would push the June 1 deadline back by two months.

But it’s unclear whether a short-term extension could pass the Senate, let alone the House, where reform supporters are vowing to oppose any stopgap legislation.