Today on Boston Public Radio: Rep. Jim McGovern talks about the significance of Wednesday’s impeachment of President Trump, where he played a key role, and reflects on what’s to come for American democracy. Next, we open lines to talk about Wednesday’s impeachment, and whether you’re worried about it backfiring on President-elect Biden. Former Suffolk County sheriff and secretary of public safety Andrea Cabral raises some legal questions about the Senate’s ability to conduct an impartial impeachment trial of President Trump. She also talks about the failings of Capitol police in preventing last week’s riot, and reflects on the death of Lisa Montgomery, the first woman to be federally executed in nearly 70 years. National Immigration Forum CEO Ali Noorani discusses the legacy of President Trump’s immigration policy, and what he’s hoping from President-elect Biden on issues like refugee resettlement and President Trump’s travel ban. He also talks about challenges with getting undocumented immigrants access to COVID-19 vaccines. Former Mass. education secretary Paul Reville talks about the state of hybrid learning in Mass., and presses for the reinstatement of standardized testing in order for officials to have a clearer understanding of the pandemic’s toll on statewide learning. Next, we reopen lines to check in with parents and teachers, to hear how remote learning is impacting your lives and the lives of students in the Commonwealth. GBH executive arts editor Jared Bowen talks about his impressions of Frederick Wiseman’s “City Hall,” an in-depth documentary about the administration of Boston Mayor Marty Walsh. He also reviewed the film “Sound of Metal,” and discussed an exhibit of works by photographer Robert Frank at the Addison Gallery.