Updated

House Democrats and Republicans elect their leadership teams for the 112th Congress Wednesday.

The Democrats will go first, meeting at 10:00 a.m. ET to vote on who will lead them in the minority. After the votes are counted and winners declared, the new leadership team will hold a media availability to discuss the party's next move.

Republicans follow suit at 1:00 p.m. ET. They are expected to name Rep. John Boehner, R-Ohio, as the next Speaker of the House. After the caucus chooses their leaders, the people that will run the majority next year hold a press conference to discuss their agenda at 4:00 p.m. ET in the Capitol building.

On the other side of the Hill, the Senate holds a pair of what should be contentious hearings in the morning.

At 10:00 a.m. ET the Senate Finance Committee hosts the Center for Medicare and Medicaid Services Administrator Donald Berwick. Senate Republicans have been chomping at the bit to get Berwick in front of a Senate committee, since as a recess appointment by President Obama he did not have a confirmation hearing. Conservative critics take issue with comments Berwick made about end of life care and a 1996 paper in which he professed a preference for a single-payer healthcare system.

Transportation Security Administration (TSA) head John Pistole is back in Congress to testify before the Senate Commerce, Science and Transportation Committee at 10:00 a.m. ET. The hearing is slated to cover "TSA Oversight," but if Wednesday's hearing is anything like Tuesday's Senate Homeland Security Committee proceeding many of the questions will focus on the agency's controversial new full-body pat down screening technique. Pistole says the procedure is "justified." Critics say it is "awkward."

The U.S.-China Economic and Security Review Commission will release its report to Congress at 10:00 a.m. ET. A draft copy of the report leaked Tuesday detailed an incident where data from .gov and .mil websites was routed through Chinese computer servers for a period of time, which could have permitted "surveillance of specific users or sites" or a possible diversion of data.

The heads of the Senate Foreign Relations Committee John Kerry, D-Mass., and Richard Lugar, R-Ind., discuss the new START nuclear weapons treaty with Secretary of State Hillary Clinton at 9:00 a.m. ET. The Obama administration has expressed its desire for the Senate to take up the treaty with Russia during this month's lame duck session.

We'll have all these stories and more covered, so stay with Fox News for the latest.