On this week's episode of Beg to Differ with Mona Charen, she is joined by regular panelists Linda Chavez, Bill Galston, and Damon Linker to discuss the latest on the impeachment inquiry, what House and Senate Republicans are doing to cover for President Trump, a wide-ranging discussion about interventionist U.S. foreign policy from Iraq to Syria, and why "endless truces" are a good thing. Plus, a look at the 2020 elections and the Democratic primary. Special Guests: Bill Galston, Damon Linker, and Linda Chavez.