Waukesha County prosecutors charged Kramer on Friday with sexually assaulting a political aide in 2011. The charges come on the heels of separate allegations he sexually harassed a lobbyist and a legislative staffer in Washington D.C. in February.
Assembly Republicans stripped Kramer of his leadership post after the Washington allegations surfaced and Kramer said he won't run for re-election in November. On Saturday Republican leaders called on him to resign outright.
A spokeswoman for Assembly Speaker Robin Vos says he plans to meet with other Republicans on Thursday to talk about Kramer.
It would take a two-thirds vote of the Assembly to expel Kramer from office.