president obama today paid tribute to america s war dead, laying a wreath at the tomb of the unknowns, he then spoke at the vietnam veteran s memorial on the 50th anniversary of their bloody conflict. and milt romney led a tribute at the veteran s memorial center in san diego. it was a somber break from the election campaign, but politics has a way of seeping into one of the most somber occasions, dan lothian is standing by, but first let s go to cnn s dana bash. and a slight political undertone to the ceremonies there in san diego. they were putting wreaths out at these ceremonies, but at the same time both men gave some speeches that might have had some politics mixed in there as well. from mitt romney, the lines that you re so familiar with, following him around, the ones really directly following the president. but you didn t have to read too much between the lines to hear his campaign pitch. reporter: a solemn moment in san diego, marking memorial day. reporter: