On Monday, VanderSloot and his wife met privately for an hour and a half with Karl Rove, the former top advisor to President George W. Bush and the strategist for the GOP heavyweight group American Crossroads. The donor has meetings with two other outside groups scheduled this week.
VanderSloot's meetings are just one example of how operatives of top-tier conservative groups are capitalizing on the convention revelry to quietly lay the groundwork for the final months of the campaign.
Barred from coordination with political campaigns, super PACs and GOP-aligned nonprofit groups have no official role in the proceedings. But through huddles with donors, discreet meetings with fellow operatives and the occasional public event, the groups have maintained a subtle but pervasive presence in Tampa.
On Tuesday, strategists from Crossroads, the U.S. Chamber of Commerce and Americans for Prosperity — three groups that have employed their abundant war chests to become the center of gravity in this election — gathered at a hotel blocks from the convention site to share political intelligence.
Throughout the week, Crossroads, the pro-Romney Restore Our Future and other outfits have hosted briefings with Republican stars, including Florida Sen. Marco Rubio and former Florida Gov. Jeb Bush.
The conventions are a natural site for such a working vacation, with the party's biggest brains and wallets in close proximity. Super PACs will also have a presence at next week's Democratic convention in Charlotte, N.C., with a coalition of outside groups hosting a "Super-O-Rama" roster of cocktails, brunch and a late-night bash, according to Politico.
So far in this election, though, right-leaning outside groups have far outpaced their liberal counterparts in fundraising. In part, that's because GOP donors have embraced the new landscape ushered in by the Supreme Court in which groups that collect unlimited checks have flourished. Romney and other Republican candidates have benefited from the support of super PACs, which must disclose their donors, and nonprofit groups, which keep their donors anonymous.
Among the mega-donors in Tampa are Las Vegas casino magnate Sheldon Adelson and energy executive David Koch. Together, they have committed hundreds of millions to Republican causes this election season.
Adelson participated in the Tuesday confab between Crossroads, the Chamber and Americans for Prosperity, according to a source with knowledge of the meeting. The discussion, first reported by the Huffington Post, consisted of sharing polling data and focus group results.
Together, American Crossroads and its nonprofit arm, Crossroads GPS, are expected to spend about $300 million, and the Koch-backed Americans for Prosperity has a $151-million budget. The U.S. Chamber of Commerce plans to pump at least $50 million into congressional races — which means those four groups alone could account for half a billion dollars of spending in this election.
On Wednesday, Adelson dropped by a reception hosted by the Republican Jewish Coalition, a nonprofit group whose board members include some of the party's most prolific donors, Adelson among them. The event, which was open to the media, hosted 450 guests, who grazed on kosher appetizers while listening to high-profile elected officials, including House Majority Leader Eric Cantor of Virginia and onetime presidential candidate Rep. Michele Bachmann of Minnesota.
The nonprofit Americans for Prosperity is sponsoring a public event Thursday to honor Koch, who has backed the group along with his brother Charles. The group plans to use the Republican convention as a launchpad for a three-bus grass-roots tour around the country aimed at highlighting the sluggish economic recovery under President Obama.
But public festivities are the exception for these mega-groups.
"I haven't seen a single piece of paper that shows what they're doing," said Keenan Steiner, who has been tracking convention fetes for the Sunlight Foundation, a nonpartisan organization advocating transparency in government. "There's not enough information out there about these groups."
The organizations are flush with cash thanks to donors like VanderSloot, who has long been a player in Idaho politics and as a finance co-chairman for both of Romney's presidential runs. He is chief executive of Melaleuca Inc., which sells cleaning supplies and personal-care products. Last year, the company's revenue surpassed $1 billion.
VanderSloot has the resources to give big and believes it's his patriotic duty to do so.
"There's a tremendous amount of sacrifice for the freedoms we enjoy," said VanderSloot, who does not publicly disclose his net worth. "I just think that it's each of our responsibility to pay that back and to try to preserve that. I feel I need to do everything I can."
VanderSloot gave a combined $1 million to Restore Our Future last August, writing checks from the treasuries of four subsidiaries of his company. He gave an additional $100,000 to the group last spring. On top of that, he has helped raise more than $500,000 for the official Romney campaign.
He said he was approaching his meetings with a critical eye.
"Right now, I'm analyzing messaging," he said. "I don't like the attacks. I sure don't like unfair attacks. I don't think the ominous tones of some of these ads are effective."
VanderSloot said Rove did not ask him for money in their Monday chat. But the face time had its effect. "I'm really impressed with American Crossroads," he said. "I'm certainly going to give some funds."
Staff Writer Matea Gold in Washington contributed to this report.