On Tuesday, Rep. Robert Garcia (D-Calif.) introduced a privileged motion on the House floor to expel Rep. George Santos (R-N.Y.). Because the motion is privileged, the Republicans have to bring it to the floor within two legislative days. “If he is sent packing, it will be remarkable not only for the fact that he was one of just half a dozen representatives to be expelled from the House but that Republicans, with their extraordinarily thin five-vote majority, will take the drastic step of actually losing one-fifth of their margin,” writes Elaine Kamarck.

In her latest commentary, Kamarck discusses how Santos got to this point and other members of Congress who have been expelled in the institution’s history.