President Donald Trump fired a few shots at his favorite Democrat targets today during an Elko, Nevada Make America Great Again rally. The Democrats are, Trump contended, pushing an “extremist immigration agenda” while stoking passions that make the party akin to an “angry, ruthless, unhinged mob.” Trump’s final rally of a three-day swing between Montana, Arizona and Nevada saw him tread familiar ground, pushing the “radical Democrats” line as a way to get his base…