Throughout the entire campaign, Walker has received about $25.5 million in individual contributions — with about 52 percent coming from out of state and 48 percent from within the state — said Mike McCabe, executive director of Wisconsin Democracy Campaign. Burke has raised about $14.1 million in individual contributions, with 69 percent coming from the state and 31 percent from out of state, McCabe said.

McCabe added that, based on disclosed spending so far, those on Walker’s side are outspending those on Burke’s side by roughly a 55 percent to 45 percent margin.

Candidates had been limited as to how much money they could receive from other candidates and political action committees, which are often controlled by special interest groups, unions and others.

The cap was previously set at about $700,000.

But U.S. District Judge Rudolph Randa ruled in September that the limit was likely unconstitutional and blocked state elections officials from enforcing it.

As a result, candidates can raise — at least for now — unlimited amounts of money from political action committees.

During this period, Walker reported receiving nearly $1.2 million from the state Republican party.