(CNN) - This rematch is getting interesting.
Wednesday, former Maryland Gov. Robert Ehrlich kicks off his bid for his old office. On the eve of that campaign kickoff, the man he's running against, current Maryland Gov. Martin O'Malley, offered to debate Ehrlich this Saturday morning on a popular Baltimore radio station.
"I welcome Mr. Ehrlich back into the race for governor," said the first term Democratic governor, on his Facebook page. "I look forward to an issue-based discussion about ideas and issues that can keep our state moving forward. If Ehrlich accepts our challenge we are looking forward to an hour-long Saturday morning debate on Maryland's future on WBAL radio."
An Ehrlich spokesman tells WBAL they are reviewing the request.
In 2002, then-Rep. Ehrlich upset Democratic Lt. Gov. Kathleen Kennedy Townsend to become Maryland's first Republican governor in over 30 years. But four years later Ehrlich lost his re-election bid to O'Malley, who at the time was Baltimore's mayor.
O'Malley is offering to debate Ehrlich in place of the weekly radio talk show that Ehrlich co-hosts with his wife on WBAL each Saturday morning. Ehrlich will officially kick off his campaign Wednesday with events in heavily Democratic Montgomery County, and in Baltimore County, the area he represented in Congress for eight years.
Updated at 8:45 p.m. ET:
Tuesday evening Ehrlich invited O'Malley to appear on his radio program this Saturday.
"I look forward to playing host this Saturday as I have every Saturday for the past few years. Rather than bringing in a moderator to fill air time, I will personally host Governor O'Malley for a one-on-one conversation," said Ehrlich.
Ehrlich's counter-offer was rejected by the governor.
We regret that he did not take our offer in the spirit it was intended," said O'Malley campaign manager Tom Russell.
Ehrlich responded that his offer still stands.
Follow Paul Steinhauser on Twitter: @psteinhausercnn