‘Not my fault’: Trump struggles to defend his record amid setbacks on immigration, trade, North Korea

President Trump proclaimed in a freewheeling speech to a conference of conservatives last weekend that “America is winning again.” But his administration has been on a pronounced losing streak over the past week.

Trump is losing ground on top priorities to curb illegal immigration, cut the trade deficit and blunt North Korea’s nuclear threat — setbacks that complicate his planned reelection message as a can-do president who is making historic progress.

Late last week, Trump flew home empty-handed from a summit with North Korean leader Kim Jong Un in Hanoi...