The Last Word with Lawrence O'Donnell host Lawrence O'Donnell has confirmed that he may be out at MSNBC, addressing building rumors that he may part ways with the network on social media today.

O'Donnell's contract with MSNBC expires in early June, but the host and MSNBC have not yet signed a new deal, leaving his position at the network in question, CNN reports. As O'Donnell tweeted this morning, his contract expires June 4, and he will "let you know where you can watch me June 5 if it's not msnbc," adding that he was sorry "this situation has become public."

The host also retweeted a recap of an interaction with Rachel Maddow, who hosts prior to O'Donnell's 10 p.m. time slot, indicating the two are "a team":

While O'Donnell's future with the network currently appears unclear, an MSNBC spokesperson did tell CNN that "negotiations are ongoing," and that the network would like to renew his contract. However, according to HuffPost, sources indicate that complications have arisen over a time slot move for The Last Word from 10 p.m. to 6 p.m., and that the network "has not been in contact with O'Donnell's team of representatives to negotiate a new deal."

A Boston native, O'Donnell graduated from Harvard College in 1974 with a degree in economics and worked as a writer and legislative aide before breaking into entertainment as a writer and producer for The West Wing in 1999. He moved on to MSNBC as a Morning Joe contributor in 2009, and began hosting The Last Word in 2010.

The Last Word airs Mondays through Thursdays at 10 p.m. on MSNBC.