The phrase "abrupt resignation" means that someone has suddenly and unexpectedly chosen to quit their job or position without giving much notice or explanation. Full definition
The jostling over the minor party's ballot line is just one twist in the scramble for attorney general, following Mr. Schneiderman's abrupt resignation last Monday after The New Yorker detailed four women's accusations of being physically assaulted by him. (nytimes.com)
The Liberal Party, still without a permanent leader after Raj Sherman «s abrupt resignation in Jan. 2015, has opened candidate nominations in all 87 constituencies and have made notice on their website that all Liberal nominations must be complete by March 1, 2015. (daveberta.ca)
The process to fill the vacancy created by Eric Schneiderman's abrupt resignation began Tuesday with a bipartisan legislative committee interviewing six candidates, including Barbara Underwood, the acting attorney general. (wbng.com)