punish with 304 not 306. walter perez was in harrisburg today as pennsylvania's electors cast their ballots. >> reporter: the 58 electoral college in the commonwealth of pennsylvania made it official today. [cheers and applause] >> reporter: it was unanimous as expected formally giving donald trump all 20 of pennsylvania's electoral votes. it marks the end of a stretch that that most of the electors admit was pretty overwhelming. fresh lawrence tabas the only elector from philadelphia says thousands of people tried convincing him not to cast his vote for mr. trump. >> i'm much more popular than anybody in my family thinks i should be. i've gotten 10s and tens of thousands of e-mails, hundreds and hundreds of letters a day. >> reporter: as you can see, a few hundred anti-trump protestors rallied at the statehouse as the electors convened. >> i think he's going to be a dangerous president and i think that he inspires a lot of hate. >> reporter: still the