Robichaud is most well-known for helping the leader of the Liberal Party, Jean Chrétien, in 1990. After Chrétien became leader of the party, he was not yet a member of the House of Commons. Usually, party leaders run in by-elections to get into the House of Commons, and represent the electoral area for a short time. Robichaud resigned as an MP so that Chrétien could win a by-election. When there was an election in 1993, Chrétien moved back to representing an area in Quebec and let Robichaud run for election in Beauséjour again.