Richard Lugar actually said...

"The treaty explicitly states that, modernization and replacement of strategic offensive arms may be carried out."

"there is a desire to make sure we have an adequate arsenal."

"New START establishes verification and monitoring mechanisms so that the United States can better understand how Russia is developing and deploying its strategic nuclear forces."

"I would mention, just for the sake of clarity, that the START II Treaty did not come into force, due, ultimately, to Russian objections."