sponsors tax

$tax_query = array(
	'relation' => 'AND',
	array(
		'taxonomy'         => 'sponsor-tier',
		'terms'            => 'silver',
		'field'            => 'slug',
	),
	array(
		'taxonomy'         => 'sponsor-active',
		'terms'            => 'active',
		'field'            => 'slug',
	),
);