I have a lot of experience of covering the big political events, such as election campaigns, Budget statements and party conferences.
Examples include a preview of Labour's general election manifesto launch, going online at 10.30pm the evening before the event. As well as a story I included a breakout box with dates of all the manifesto launches; a chart showing the results of an opinion poll; an on-site poll, nicely illustrated, for readers to vote in, and some background on the rival Conservative campaign. Key points from Labour's manifesto were included in bullet points as well as in the main article text.
Another example would be an opinion piece on the 2015 Budget, which looked at plans for further spending cuts hidden in the small print and went up on the afternoon of the statement.