Nothing trashes an argument quite as quickly or as completely as the inclusion of incorrect information.

The letter indicates that Clarence Thomas replaced Abe Fortas on the Supreme Court.

Abe Fortas resigned in 1969 and Richard Nixon nominated Harry Blackmon to replace him..
Clarence Thomas was nominated by George Bush, Sr. to replace Thurgood Marshall who resigned in 1991.  

After I noticed this glaring error, I lost interest and quit reading.  I expect others did also.