Some Republican battleground candidates opt out of midterm convention where Trump is speaking

Tens of thousands of Republicans are expected to gather in Dallas, Texas, for the first ever GOP midterm convention. CBS News' Fin Gómez reports on why some candidates are not attending.

Tens of thousands of Republicans are expected to gather in Dallas, Texas, for the first ever GOP midterm convention. CBS News' Fin Gómez reports on why some candidates are not attending.