Detailed text transcripts for TV channel - CNN - 20180313:05:39:00
>> as i said, it's been a reliable republican district for a while. things might be changing, though. gary tuchman takes a look. >> reporter: mary ellen, a lifelong pennsylvanian is a proud registered republican. she voted for donald trump for president. very volunteered on rick santorum's first campaign for congress. >> i'm calling from the conor lamb for congress campaign. how are you this morning? >> reporter: but conor lamb is a democrat, running for congress in pennsylvania's 18th district, which donald trump won by almost 20 percentage points, and mary ellen is a volunteer for lamb's cam...