Governor Doyle has twice as much money for his reelection campaign than his best-funded republican rival.
Doyle's campaign says the governor raised just over a million dollars during the last six months of 2005.
Overall, he has $4.2 million in the bank.
U.S. Representative Mark Green's campaign has just over $2 million.
Green and Milwaukee County Executive Scott Walker are competing for the republican nomination to take on Doyle.
Walker's campaign manager didn't say how much he has, but says it's not as much as Green.