WASHINGTON (WUSA9) -- In a plea hearing on Monday, the man behind the shadow campaign in the 2010 DC Mayoral Election says Vincent Gray knew about the whole thing.
Jeffrey Thompson appeared at the U.S. District Court for the District of Columbia on Monday afternoon.
Thompson told federal prosecutors the mayor knew about the shadow campaign.
In fact, Jeanne Clarke Harris and Vernon Hawkins, two people associated with the campaign, met first with him to discuss how the shadow campaign would work, according to Thompson's testimony.
RAW VIDEO: Bruce Johnson's full interview with Mayor Vincent Gray
Thompson said he made clear he didn't want then-mayor Adrian Fenty to know about it and that any contributions he made would have to be made under-the-table.
Thompson, Harris and Hawkins agreed Thompson would be called "Uncle Earl" during the campaign to hide his identity, Bruce Johnson reported.
According to prosecutors, in June 2010, Thompson met with Gray at Harris' apartment in upper Northwest.
The mayor allegedly presented a budget to Thompson detailing how much money would be needed and what it would be needed for -- in this case, to get out the vote. Prosecutors say Thompson then wrote a check for more than $500,000 for the Gray campaign.
In the deal with prosecutors, Thompson agreed to plead guilty on two counts of illegal contributions. He faces up to six months in prison.