I now declare in a post-impeachment era, this a gloat-free zone,

This marks the end of the post-communist era.

When Arianna Huffington founded 'The Huffington Post' in 2005, a whole new era of journalism began.

This is a summit with Yeltsin in a post-Yeltsin era. There's the complexity of dealing with a leader that may pass from the scene quickly, even though he doesn't intend to.

the leading figure in Spain's literary renewal during the post-war era.

some perceived political gain here.