been answered. >> reporter: as they look forward to president trump's announcement next week of his pick to fill the vacancy on the court left by antonin scalia's death last year. >> we have four years with a president who has promised to consider this issue when choosing his supreme court juzs and the pro life movement is sending a message here today, we are paying attention, we're here and we're expecting president trump to keep that promise. >> reporter: in an interview with the christian broadcasting network, president trump insisted they won't be disappointed. >> i think people are going to love it. evangelicals, christians will love my pick. and will be represented very fairly. >> reporter: trump tweeted about the event saying the march for life is so important. to all of you marching, you have my full support. >> so brianna, you were out there today during the march. what was the overall mood? >> a lot of energy, i'll tell you that, john.