We  have long known that Thomas was totally unqualified to sit on the  Supreme Court.  And at a minimum, for him to claim he cannot understand  and truthfully complete a simple disclosure form, this proves it.   Immediate impeachment is the least we should expect. 
The motto of the Supreme Court is "Equal Justice Under Law".  If those  words are to mean anything, Thomas must be prosecuted just as he would  coldly affirm the conviction of anyone else who did such a thing.
 
