Senate Majority Leader Harry Reid (D-Nev.) said he's "committed" to a using lame-duck session of Congress to wrap up unfinished legislation at the end of the year.

The top Senate Democrat said the session would involve "mopping up" priorities that lawmakers aren't able to tackle before November's key congressional elections.

"Remember, we still are going to be in Congress, working, after the election. I've committed to a lame-duck," Reid told reporters following an energy summit he held in Nevada.

"There are things that we have to do," he added, as reported by Reuters and the Las Vegas Review-Journal. "There is a lot of mopping up to do when we come back after the election."

The Senate returns next week for several weeks of action before breaking again for members to head home to campaign ahead of the midterm elections. Reid is among those Democrats facing a tough reelection challenge this year.

The lame-duck session, held after the elections and before new members are sworn in, could give retiring and defeated lawmakers a sense of feeling more free to vote for legislation they might not have otherwise supported, especially if Republicans will take over the House and maybe the Senate early next year.

Democrats haven't been specific about what they might pursue during the lame-duck session, but Republicans have raised fears that it could include an aggressive energy and climate bill and the Employee Free Choice Act (EFCA, or "card check").

To that end, the GOP has sought to push resolutions (at least in the House) to press Democratic leaders against a lame-duck session, part of a public relations push Republicans have waged in recent months against such a legislative maneuver. Reid himself has said that a renewable electricity standard is "absolutely" a possibility to move during a lame-duck session.

The Republican concerns are also driven by the White House's refusal to rule out such lame-duck action, despite having been asked numerous times.

—Updated 10:22 a.m.