Labour leader Ed Miliband has said he wants union members to have an "active choice" over their membership to his party.
He told the BBC's Andrew Marr Show that he wants Labour to establish links to "individual union members".
He added that there needed to be a strong message sent about MPs with possible conflicting business interests.
More top news
Russian air strikes have forced Islamic State to retreat to the outskirts of the ancient city, the Syrian Observatory for Human Rights said.
Fiona Hill branded the former education secretary "that woman" after Ms Morgan criticised the PM's decision to wear £995 trousers.
Revered journalist AA Gill, who died weeks after revealing he had cancer, dedicated his final article to his experience with the NHS.