When Rick Perry joked last night that the $5,000 he had received from Merck wasn’t enough to buy him off, the line failed to charm the audience as he’d expected. Turns out, the line also significantly low-balled how much he’d received from Merck. “Merck PAC—the company’s D.C.-based political action committee—has given Perry $28,500 since 2001, according to Texas Ethics Commission filings. The bulk of that money came prior to 2007,” the Los Angeles Times reports today. Even so, that doesn’t make Merck one of Perry’s top donors: the LA Times notes that he’s received over the years donations totaling more than six figures from over 200 sources.