A US president who vowed to be a peacemaker has to handle a new Middle East crisis that strikes a blow to his diplomatic efforts.

US president says Israeli strikes on Iran are possible, but he reiterates preference for diplomatic deal with Tehran.

A US president who vowed to be a peacemaker has to handle a new Middle East crisis that strikes a blow to his diplomatic efforts.

Discordant US response as president says he was fully aware of plans for what Marco Rubio called a ‘unilateral action’