tax_status
$tax_query = array( array( 'taxonomy' => 'issue_status', 'terms' => array( 'active', ' critical', ' priority' ), 'field' => 'slug', 'operator' => 'IN', ), );
$tax_query = array( array( 'taxonomy' => 'issue_status', 'terms' => array( 'active', ' critical', ' priority' ), 'field' => 'slug', 'operator' => 'IN', ), );