The U.S. Senate on Tuesday voted, mainly along party lines, that former President Donald Trump's impeachment trial is constitutional . Now senators must determine whether Trump committed high crimes and misdemeanors by inciting the Jan. 6 insurrection. Impeachment managers have since begun laying out their case by highlighting the former president's language during a rally on Jan. 6 and his frequent unfounded claims of widespread election fraud, and linking that with the violence that erupted at