Speaking during a Q&A session in Brighton, Labour leader Ed Miliband has vowed to "make work pay for the workers of Britain" and tackle a crisis in the cost of living.
He condemned David Cameron's government for allowing prices to rise faster than wages in 38 of its 39 months in office.
More top news
The First Lady's masterly performance, combined with Bernie Sanders' impressive speech, saved a convention that was fraying at the edges.
The High Court will hear a legal challenge to Labour's decision to guarantee Jeremy Corbyn a place on the party's leadership ballot.
Russian Foreign Minister Sergei Lavrov brushed aside accusations that Moscow was behind the hacking of internal Democratic Party memos.