White House counsel
After Clinton's 1992 election, Foster joined Clinton's presidential transition team. Once Clinton was inaugurated, Foster joined his White House staff as Deputy White House Counsel in early 1993. This was despite Foster's initial reluctance to leave his Little Rock life behind and come to Washington. There he worked under the White House Counsel, Bernard W. Nussbaum, although Nussbaum would consider the pair to be "co-senior partners". He was also joined with two other Rose Law Firm partners, William H. Kennedy, III, who served as his associate counsel, and Webster Hubbell, who became Associate Attorney General. The Foster residence was a small rented house in Georgetown in Washington, D.C.
Foster had difficulty making the transition to life and politics in Washington. Unlike some other Clinton-associated figures, he had no experience with campaigns or electoral politics. His wife and youngest son were not with him, having stayed behind in Arkansas so the son could complete his senior year of high school at Catholic High in Little Rock. His initial role was in vetting potential administration appointees. As one subject of the vetting process later said, "I wondered why I was being interviewed by the guy who would be deputy counsel. Seemed his job was to find out how honest I was, and what level of ego I was bringing. It's a measure of how much the Clintons trusted him." But Foster found this involvement in vetting appointments to be causing him depression and anxiety. In particular, he blamed himself for the failed Zoë Baird nomination; he had thought that Baird had been justified in following her lawyer's advice regarding the payment of taxes on household employees, but he had failed to anticipate the political backlash that led to it becoming known as "Nannygate" and that blemished the early days of the administration. The equally unsuccessful Kimba Wood and Lani Guinier appointments were also under Foster's purview. He had to resign from the Country Club of Little Rock once its all-white membership became a political issue for others in the administration.
As Deputy Counsel, Foster was also involved in a range of other matters, including preparation of executive orders, analyzing the legal effect of various policies, examining international treaties, discussing the ramifications of authorizations for use of military force, and authorizing expenditures within the White House. Foster worked on placing the Clintons' financial holdings into a blind trust.
He handled the Clintons' Madison Guaranty and Industrial Development Corporation paperwork and also several Whitewater-related tax returns. He worked twelve-hour days, six or seven days a week, and although thin to begin with, began losing weight.
On May 8, 1993, Foster gave the commencement address at the University of Arkansas Law School, his alma mater, and said:
The reputation you develop for intellectual and ethical integrity will be your greatest asset or your worst enemy. You will be judged by your judgment. ... Treat every pleading, every brief, every contract, every letter, every daily task as if your career will be judged on it ... There is no victory, no advantage, no fee, no favor, which is worth even a blemish on your reputation for intellect and integrity. ... Dents to the reputation in the legal profession are irreparable.
One faculty member listening to it recalled telling another that it was "the most depressing graduation speech I had ever heard, in both content and manner." A friend of Foster's has said, "Look, it's just crazy, right? You get one dent and it can never be fixed? In Washington, you get them all the time. You get twenty dents and you go to the body shop. Vince couldn't see that, apparently."