In a short time the practice of nominating by a " congressional caucus" became a recognized institution.

在很短的时间内，通过“国会核心小组”提名的做法成为公认的机构。

When Michael Bloomberg, then mayor of New York, tried to block the use of government vouchers to buy sodas in 2010, the congressional black caucus was among those to lobby against it.

2010年，当时的纽约市市长迈克尔·布隆伯格试图阻止人们用政府代金券购买碳酸饮料，但却遭到了包括美国国会黑人同盟在内的多数人的反对。