Trump talks Shanahan, China tariffs and Iran as he departs for rally US President Donald Trump says he did not ask acting Defense Secretary Patrick Shanahan to resign and defends the vetting process, in light of recently resurfaced incidents of domestic violence in Shanahan's family. Speaking to reporters from the South Lawn of the White House before departing for his re-election launch in Orlando, Florida, Trump also discusses relations with China's President Xi amid the ongoing tariff war, and the US position on Iran. IMAGES AND SOUNDBITES