US vice-president rivals defend Trump and Harris in polite election debate

US vice presidential contenders JD Vance and Tim Walz faced off in a surprisingly civil debate on Tuesday, despite tense moments on the hot topics of migration, abortion and the threat of war in the Middle East.

Republican Vance and Democrat Walz dug into policy and avoided the bitter personal attacks that presidential candidates Donald Trump and Kamala Harris exchanged during an often heated clash in September.

But the shadow of their bosses hung over the CBS debate, with Walz attacking...