On Thursday’s First Light, Democrats and Republicans harden their arguments on day one of the impeachment hearings.  The El Paso Walmart where 22-people died in an August shooting rampage re-opens today.  Kevin Carr gives his impressions of the new Disney streaming channel. Michael talks to correspondent Linda Kenyon about day one of the impeachment hearings.  And reporter Tara Copp returns with more on her investigation into cancer clusters in the military