It’s been three months since Democrats took control of the House. In that time, there has been an historic government shutdown, explosive congressional testimony, multiplying investigations, and even some new legislation.

Now, as talk of impeachment buzzes through the Capitol, both Democrats and Republicans seem to be struggling to maintain unity.

To help understand what all this means for priorities in Congress and the balance of power in Washington, Diane talks to Sheryl Gay Stolberg, congressional correspondent for the New York Times.