Former Wisconsin Gov. Tommy Thompson officially filed paperwork with the Federal Election Commission Tuesday, doing so just days after the end of the third quarter fundraising deadline.
The timing is notable: The Republican will have a full quarter to raise money before he has to release his first set of figures. He's up against a field that includes former Rep. Mark Neumann, who has the ability to self-fund.
Thompson aide Darrin Schmitz said in a statement that an announcement tour is in the works. In a fundraising email, Thompson notes that that on Monday, he signed an anti-tax pledge from Grover Norquist's group, Americans For Tax Reform.
State Sen. Frank Lasee and state Assembly Speaker Jeff Fitzgerald have also reportedly filed with the FEC.