Members are trickling back into D.C. as both chambers gavel in after the holiday break. The next few weeks are expected to be brutal, especially given the simmering angst within the House G.O.P. conference about the leadership of Mike Johnson, who heads into a hellacious negotiating season with an eventual one-vote margin. (This instability will escalate tensions around the Hill for the next few weeks.) But come February, Congress will be obsessed with the outcome of New York’s Feb. 13 House special election, after which primary season will consume the attention of members and staffers. In fact, it’s already starting. Here’s what’s going around today: