Sen. Al FrankenAlan (Al) Stuart FrankenReport: Conyers settled wrongful dismissal complaint over 'sexual advances' Arianna Huffington denies Franken behaved inappropriately in response to new photos Right way and wrong way MORE (D-Minn.) may have been elected eight months ago but he's low-man on the Senate totem poll.

Franken, who was sworn into office on Tuesday after a long legal battle, ranks last when it comes to Senate seniority.

A spokesman for Senate Majority Leader Harry ReidHarry ReidVirginia was a wave election, but without real change, the tide will turn again Top Lobbyists 2017: Grass roots Boehner confronted Reid after criticism from Senate floor MORE's (D-Nev.) office confirmed Franken's position.

"Franken's service begins on the date on which he is sworn. So regardless of state size, etc, he cannot jump over members who were sworn on Jan. 6th," Reid spokesman Jim Manley said in an email. "So Mr. Franken is Number 100 and is last in seniority for all members and, of course last, for Democrats too."

That puts Franken behind several senators who were appointed to their positions after November's election. Sens. Roland Burris (D-Ill.) and Ted Kaufman (D-Del.) joined the Senate in mid January after then-Sens. Barack ObamaBarack Hussein ObamaReport: FCC chair to push for complete repeal of net neutrality Right way and wrong way Keystone XL pipeline clears major hurdle despite recent leak MORE (D-Ill.) and Joe BidenJoseph (Joe) Robinette BidenObama tweets birthday message to Biden: 'The best vice president anybody could have' The Hill's 12:30 Report Tech beefs up lobbying amid Russia scrutiny MORE (D-Conn.) were elected to the White House. Sens. Michael BennetMichael Farrand Bennet15 Dems urge FEC to adopt new rules for online political ads Lawmakers put their beer brewing skills to test for charity Bipartisan lawmakers can rebuild trust by passing infusion therapy bill MORE (D-Colo.) and Kirsten GillibrandKirsten Elizabeth GillibrandDem: Ex-lawmaker tried to pin me to elevator door and kiss me In Washington and Hollywood, principle is sad matter of timing Mika Brzezinski: Bill Clinton needs to apologize or stop talking MORE (D-N.Y.) also took office in late January to replace senators who took Cabinet positions.

Seniority determines where a senator sits on a committee, particularly in terms of committee leadership. It can also affect seemingly smaller matters, such as what desk a senator has in the chamber and the odds of getting a better office when there is a vacancy. Sen. Robert Byrd (D-W.V.) is the chamber's highest-ranking senator and serves as president pro tempore. That position allows him to preside over the Senate and puts him in line for the presidency.

- J. Taylor Rushing