Stephen Colbert tries to get to the bottom of the new drama in the Trump Russia investigation

Congressman Devin Nunes is in the middle of a firestorm currently, so Stephen Colbert decided to break down how he's connected to President Donald Trump, the investigation into the Trump administration's alleged Russian ties, and the president's wiretapping claims.

Last week, Nunes, the head of the House Intelligence Committee looking into Trump's possible Russian collusion, came forward with information that Trump and his associates were possibly having their communications "incidentally collected" by the intelligence community during the transition period.

"I can't tell if we're going to learn anything from Nunes," Colbert said on Tuesday's "Late Show." "He doesn't seem all that focused on Russia, because he spent a lot of time trying to validate Trump accusing Obama of wiretapping him."

Nunes is now under fire for revealing that he discovered the information while on White House grounds and then shared it first with the president before informing his colleagues on the investigation committee. Many are calling for him to step down from his position on the committee under speculation he's working with Trump.

"Oh, that is brilliant detective work," the host said. "You gather all the evidence you can on the prime suspect, then you share it with him. It's all part of CBS's new show, 'CSI: Washington No Investigation.'"

The whole thing could be pretty confusing, so Colbert pulled out the "Figure-It-Out-a-Tron" (a chalkboard) to diagram just how Nunes and Trump are connected.

Watch the video below: