Giannoulias was ostensibly in town for a Greek Independence Day celebration at the White House, though it's no secret he's been courting the support of the Obama administration for his Senate run.
At a Tuesday press briefing, Press Secretary Robert Gibbs affirmed the White House's support.
But the White House isn't going out of its way, it seems, to show off that support.
In contrast, Obama is already fundraising for Sen. Reid in Nevada and for Sen. Bennett in Colorado.
For Giannoulias' part, he seemed to hedge when asked whether he expected Obama to campaign for him in Illinois.
"I'm very excited to have the full support of the president," Giannoulias said outside the White House after his meeting today. "Part of the meeting that took place was to make sure we understood how support of the White House works."
Asked directly whether the White House had set any specific dates to come out and stump for him, Giannoulias said "Again, today was to talk about going forward how they can be helpful in the campaign."