Keith Olbermann, the MSNBC host who was suspended indefinitely last week for making donations to Democrats during the 2010 campaign cycle without permission from NBC News, will return to his show Countdown on Tuesday. The statement comes from MSNBC President Phil Griffin:

“After several days of deliberation and discussion, I have determined that suspending Keith through and including Monday night’s program is an appropriate punishment for his violation of our policy. We look forward to having him back on the air Tuesday night.”

Griffin initially made the decision to suspend Olbermann, along with NBC News President Steve Capus and CEO of NBC Universal Jeff Zucker.

Nearly 300,000 supporters have signed a petition from the Progressive Change Campaign Committee to get Olbermann back on the air. Numerous progressives and even journalists came to Olbermann’s aid, arguing that he never made any bones about being an opinionated supporter of liberals. And it’s unclear whether MSNBC personnel are required to follow the dictates of NBC News policies and standards.

If history is any guide, Olbermann will address the suspension on his show on Tuesday with a Special Comment. He did tweet a mini-comment this afternoon, acknowledging the quick support by saying “Greetings From Exile! A quick, overwhelmed, stunned THANK YOU for support that feels like a global hug & obviously left me tweetless XO.”

In other news, Mika Brzezinski is a massive liar.