Revealed: emails raise ethical questions over Trump official's role in gas project

Documents obtained by the Guardian suggest interior secretary is promoting effort tied to his former firm

The US interior secretary, David Bernhardt, is promoting a fossil fuel project for which his former employer, a lobbying firm, is a paid advocate, e-mails obtained by the Guardian suggest.

Experts say Bernhardt is probably violating ethics guidelines issued by the Trump administration with the stated goal of "draining the swamp". Based on these rules, Bernhardt should be recused from specific issues involving a former client for at least two years.