an emotional tribute today for bob dole president biden and both parties coming together for the funeral. the long-time senator and former gop presidential nominee and moving words from tom hanks and our own savannah guthrie here's andrea mitchell. >> reporter: at washington's national cathedral, a celebration to honor the long life of robert j dole. >> god, what courage bob dole had >> reporter: grievously wounded in battle but resilient a political warrior who believed in compromise, mentor to a freshman democrat named joe biden. >> we disagreed, but we were never disagreeable with one another. i found bob to be a man of principal, pragmatism and enormous integrity. >> reporter: his wife of nearly 46 years, former senator and cabinet member elizabeth dole, and a