Jillian Bandes
This is from the White House visitor logs that check everyone who goes in and out. Here's a few individuals, with their number of visits:

George Soros - 4 times
Bill Ayers - 2 times
Jeremiah Wright - 1 time
Micheal Moore - 8 times
Micheal Jordan - 5 times
Gen. David Petreus - 0 times
Unions Boss Richard Trumka - 8 times
Union Boss Andy Stern - 21 times
Alan Greenspan - 8 times
Gen. Stanley McChrystal - 0 times

Jillian Bandes

Jillian Bandes is the National Political Reporter for Townhall.com