With days left to make their case to voters, the three major party candidates for governor are tapping any and all streams of campaign cash to finance last-minute efforts to spread their messages. Independence Party candidate Tom Horner's campaign, the poorest-financed, is the only one to report receiving money this week -- $19,000, with most of it coming from his party. DFLer Mark Dayton reported receiving $2,000 from an individual two weeks ago. GOP candidate Tom Emmer reported no contributions in the past two weeks. But contributions to their campaigns account for only a small part of the money raised or spent in recent days to sway the governor's race. Minnesota's Future, a pro-business organization that has run ads attacking Dayton, collected $1,003,500 in the past two weeks, with a $1,000 check coming in as recently as Friday. Its biggest donation came from the Republican Governors Association two weeks ago. Alliance for a Better Minnesota, which buys ads attacking Emmer, this week raised $5,000 from a public employees union and another $420,000 from an affiliated pro-labor fundraising group, WIN Minnesota. It in turn raised another $29,000 this week from three individuals. While those three groups are among the largest that are spending money to support or oppose candidates, other groups such as the teachers union Education Minnesota and the Minnesota Business Partnership collect money to buy issue ads or contribute directly to candidate campaigns. Expensive T.V. commercials eat up much of the money, but some of the spending is decidedly low-key, like the $4,976 that the AFL-CIO dedicated this week to "fliers for Dayton," according to its report to the Minnesota Campaign Finance and Public Disclosure Board. Dayton relies heaviest among the three candidates on political interest groups, collecting $154,500 in campaign contributions from them through Oct. 18, compared to $39,168 for Emmer. Horner reported none.