Record number of women likely to serve in the Senate

Elizabeth Warren, Assistant to the President and Special Advisor to the Secretary of the Treasury, listens to a question as she testifies at a hearing about oversight of the Consumer Financial Protection Bureau of the U.S. House Oversight and Government Reform Committee on Capitol Hill in Washington, in this May 24, 2011 file photo. Massachusetts Republican Senator Scott Brown slammed Democratic challenger Warren's claim she is part Cherokee as they squared off in a televised debate September 20, 2012 in one of the country's most closely watched U.S. Senate races. REUTERS/Jonathan Ernst/Files. (UNITED STATES - Tags: POLITICS BUSINESS CRIME LAW HEADSHOT)

The U.S. Senate is on track to have an all-time high number of women members.

With wins by Democrat Elizabeth Warren in Massachusetts and Tammy Baldwin in Wisconsin, there will likely be 18 women senators in office come January, one higher than the current peak.

There are currently 17 female senators, but two Republican women — Olympia Snowe (Maine) and Kay Bailey Hutchison (Texas) — opted not to run for re-election.

Incumbent women projected to win in California, Michigan, Minnesota, Washington and New York, and two women are squaring off in Hawaii, Democratic Rep. Mazie Hirono is facing former Hawaii Gov. Linda Lingle.

If Democrat Shelley Berkley wins her race in Nevada, the new record for concurrent women senators could be even higher.