Question: what is the total number of reasons for change where the date the successor was seated is june 8, 1876?
Schema: create table table_2192067_4 (reason_for_change varchar, date_successor_seated varchar, PRIMARY KEY (reason_for_change))
SQL: select count(reason_for_change) from table_2192067_4 where date_successor_seated = "june 8, 1876"