It is not enough for an elected member of Congress to represent their particular district, no matter how convoluted its lines are drawn. Those who stand on Capitol Hill, do so to represent not just their state, but the nation as a whole. Each takes an oath, similar to that which the President takes, and it is such that a Congressman is bound to their duty to "bear true faith and allegiance" to the Constitution of the United States. The Constitution is the guidebook to how the business of the nation shall be conducted, and the Preamble makes it quite clear what the duties of the Federal government are.
So, it is quite disheartening, when a major legislative figure in Congress makes a statement which so completely contravenes the spirit and the word of the Constitution, to wit, the protection of the "general welfare." That nondescript, two-word phrase, encompasses the highest order of the land, for it enjoins Congress to see to the needs of the nation and its citizens at all times and in all places, and that no American need suffer where the Federal government can render aid and comfort.