Here are two sentences:

Bush 's aides describe Omaha as the most crucial stop , since Sen. Ben Nelson ( D-Neb . ) has become their top lobbying target on the tax cut package .

Bush 's aides describe Omaha as the most crucial stop , since Senator Ben Nelson , Democrat of Nebraska , has become their top lobbying target on the tax-cut package .
Choose your answer: are the two sentences saying the same thing?
Choose from:
(I) no;
(II) yes;
(II)