Link sent in by a reader:
‘But Dr. Buchanan contended that the pursuit of self-interest by modern politicians often led to harmful public results. Courting voters at election time, for example, legislators will approve tax cuts and spending increases for projects and entitlements favored by the electorate. This combination can lead to ever-rising deficits, public debt burdens and increasingly large governments to conduct the public’s business.’
Via Volokh, more here on his accomplishments.