Memorial Including News Today

>> reporter: years later when senator mccain ran for president, roberta joined him on the campaign trail. at her age, she always imagined her son would outlive her, but instead this week she is burying him. a pillar of strength, once again for the mccain family. randi kaye, cnn, new york. >> and as mentioned, high profile politicians are set to speak at john mccains memorial including former u.s. presidents barack obama and george w. bush. cnns coverage of the service at the national cathedral s...