As Larry Sinclair, the Minnesota man who claims to have used drugs with Sen. Barack Obama in 1999, has ratcheted up his legal wrangling, it appears he’s having some success.

Sinclair told Big Head DC on Monday evening that he’s been notified by WhiteHouse.com’s Dan Parisi to redeposit a check Parisi wrote for $20,000 to Sinclair on February 22. The payment was in exchange for Sinclair taking a polygraph test that was to be displayed on WhiteHouse.com.

A PolyScore computer analysis resulting from the polygraph ultimately indicated Sinclair had been truthful regarding his drug allegations against Obama. Still, experts hired by WhiteHouse.com discounted the PolyScore results.

Parisi canceled payment on the check soon after Sinclair took the polygraph, leading many observers who’ve been swayed by Sinclair’s claims to believe that Parisi may have been compelled by Obama’s campaign to somehow impede Sinclair’s claims. Adding to the controversy, WhiteHouse.com officials eventually removed any mention of Sinclair from the Web site.

The re-issue of the check has not yet cleared, but bank information should be available soon.

Earlier: EXCLUSIVE Interview With Sen. Obama’s Accuser; Sinclair Discusses Polygraph, Plans

Note: Help Big Head DC’s Investigative Team Grow!