Republicans’ desire to contain the number of inquiries has created incentives for the party to work with Democrats on the Intelligence Committee, including hammering out a joint investigative plan that includes subpoena power to compel testimony from officials and associates of Trump’s presidential campaign.

That comity could be tested, however, if the panel begins to close in on information that could truly damage the Trump administration. Republicans could face some tough decisions on how hard to press for additional information.

Democrat Chris Murphy of Connecticut told reporters last week that while his party is united in supporting a robust intelligence probe, he still wants an independent commission because he doesn’t fully trust the Senate majority leader to let the current probe run its full course.

“I’m just not convinced that Mitch McConnell is going to let the Intelligence Committee get to the real story,” he said.