Question: What was Brian Moran's tally in the Survey USA poll where Creigh Deeds had 26%?
Schema: create table table_21535453_1 (brian_moran varchar, source varchar, creigh_deeds varchar, PRIMARY KEY (brian_moran))
SQL: select brian_moran from table_21535453_1 where source = "survey usa" and creigh_deeds = "26%"