and all that represents. there's also the issue of the president's re-election, of course. the president erasing all doubts about how worried he is regarding the candidacy of joe biden. it is not just because biden gets under his skin, it is also because biden was born in the state of pennsylvania, which mr. trump won in 2016 and is critical to his campaign in 2020. >> i'll be seeing a lot of you over the next year. i'll be here a lot. got to win this state. >> reporter: president trump making the first of likely many visits to pennsylvania this year, holding a rally for a republican in a congressional special election. also, looking ahead to 2020. mr. trump using many of his regular talking points, emphasizing a strong economy and contrasting himself to one of his potential democratic competitors. >> sleepy joe said that he's running to, quote, save the world. well, he was. he's going to save every country