Republican Marty Seifert, who ran for governor in 2010 and has been upfront about his interest in running again, says politicos should circle Nov. 21 on their calendars.

"I could be announcing anything," he said of his announcement at 1:30 p.m. in the State Office Building. "I wouldn't want to spoil the surprise."

But for Seifert, a former House minority leader from Marshall, there should be little surprise. He has left little doubt over the past few months that he's very interested in running for governor. On Tuesday, MinnPost cited sources saying Seifert would announce on Nov. 21; last week, the Morning Take newsletter said Seifert would announce on Nov. 18.

Last month, he came in third as a write-in candidate at the Minnesota Republican Party's straw poll for governor.

Before that showing, Seifert said: "I'd be leery of wanting to be the winner because they never go on to be the nominee."

Seifert won the 2009 gubernatorial straw poll and lost the 2010 endorsement for governor to Tom Emmer.