Debating impeachment, Democrats have 2020 on their minds

For Democrats, the decisions being made of whether to support impeachment proceedings against President Donald Trump are personal, gut-wrenching and, at times, starkly political, with fallout in 2020 and beyond. Some lawmakers worry impeachment will benefit the president, energizing Trump's supporters and solidifying his campaign, much the way the proceedings against Bill Clinton ended up costing Republicans in 1998. Others warn that failing to impeach Trump risks deflating Democratic voters they need to turn out in 2020. And still others envision a "nightmare" scenario: The House votes to impeach, but the Senate declines to convict, Trump survives to win a second term and Democrats lose majority control.