Leaked Bolton claims fuel fiery new clash over impeachment testimony

Leaked claims from former National Security Adviser John Bolton's forthcoming book are fueling a new confrontation between congressional Democrats and Trump-allied Republicans over whether the Senate should hear from witnesses in its impeachment trial. 

Bolton’s manuscript leaks as memoir pre-orders begin on Amazon; Trump fires back

Former national security advisor John Bolton's team was under fire from the White House and conservative commentators Sunday night, after a report in The New York Times revealed a bombshell excerpt from Bolton's forthcoming book that could prove pivotal in President Trump's impeachment trial -- just as the Amazon product page for the book went live.