Democrats planning new phase in impeachment investigation; Trump rails against impeachment probe as WH stonewalls Dems; Turkey sends ground troops into Syria; For the first time, Biden calls for Trump to be impeached;

Dems plan wave of subpoenas despite Trump stonewalling; Speaker Pelosi still resisting calls for impeachment inquiry vote; Trump tweets attack on impeachment probe, whistleblower; Trump Admin launches war against impeachment inquiry; Trump predicts impeachment fight could go to Supreme Court; Trump, without evidence, says whistleblower in "cahoots" with Rep Schiff; Whistleblower may secretly be deposed on Capitol Hill; Turkey sends ground forces into Syria after Trump moves U.S. troops out; U.S. Official: Turkey's attacks already hurting fight against ISIS; After heart attack, Sanders will cut back on campaign events; Warren takes the lead over Biden in new Quinnipiac poll.To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices